Removed unused --preallocate-message-memory flag.

It results in a lot of dead code, and Isolate::PrintStack itself
crashes most of the time when something went wrong earlier.
Furthermore, we have plans do get better information into the
minidump, anyway.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/78003002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17918 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/allocation-inl.h

-// Copyright 2010 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#ifndef V8_ALLOCATION_INL_H_
-#define V8_ALLOCATION_INL_H_
-
-#include "allocation.h"
-
-namespace v8 {
-namespace internal {
-
-
-void* PreallocatedStorageAllocationPolicy::New(size_t size) {
-  return Isolate::Current()->PreallocatedStorageNew(size);
-}
-
-
-void PreallocatedStorageAllocationPolicy::Delete(void* p) {
-  return Isolate::Current()->PreallocatedStorageDelete(p);
-}
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_ALLOCATION_INL_H_

src/allocation.cc

@@ -100,24 +100,4 @@ char* StrNDup(const char* str, int n) {
   return result;
 }
 
-
-void PreallocatedStorage::LinkTo(PreallocatedStorage* other) {
-  next_ = other->next_;
-  other->next_->previous_ = this;
-  previous_ = other;
-  other->next_ = this;
-}
-
-
-void PreallocatedStorage::Unlink() {
-  next_->previous_ = previous_;
-  previous_->next_ = next_;
-}
-
-
-PreallocatedStorage::PreallocatedStorage(size_t size)
-  : size_(size) {
-  previous_ = next_ = this;
-}
-
 } }  // namespace v8::internal

src/allocation.h

@@ -109,34 +109,6 @@ class FreeStoreAllocationPolicy {
 };
 
 
-// Allocation policy for allocating in preallocated space.
-// Used as an allocation policy for ScopeInfo when generating
-// stack traces.
-class PreallocatedStorage {
- public:
-  explicit PreallocatedStorage(size_t size);
-  size_t size() { return size_; }
-
- private:
-  size_t size_;
-  PreallocatedStorage* previous_;
-  PreallocatedStorage* next_;
-
-  void LinkTo(PreallocatedStorage* other);
-  void Unlink();
-
-  friend class Isolate;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(PreallocatedStorage);
-};
-
-
-struct PreallocatedStorageAllocationPolicy {
-  INLINE(void* New(size_t size));
-  INLINE(static void Delete(void* ptr));
-};
-
-
 } }  // namespace v8::internal
 
 #endif  // V8_ALLOCATION_H_

src/flag-definitions.h

@@ -600,8 +600,6 @@ DEFINE_bool(abort_on_uncaught_exception, false,
             "abort program (dump core) when an uncaught exception is thrown")
 DEFINE_bool(trace_exception, false,
             "print stack trace when throwing exceptions")
-DEFINE_bool(preallocate_message_memory, false,
-            "preallocate some memory to build stack traces.")
 DEFINE_bool(randomize_hashes, true,
             "randomize hashes to avoid predictable hash collisions "
             "(with snapshots this option cannot override the baked-in seed)")

src/frames.cc

@@ -38,8 +38,6 @@
 #include "string-stream.h"
 #include "vm-state-inl.h"
 
-#include "allocation-inl.h"
-
 namespace v8 {
 namespace internal {
 

src/isolate.cc

@@ -29,7 +29,6 @@
 
 #include "v8.h"
 
-#include "allocation-inl.h"
 #include "ast.h"
 #include "bootstrapper.h"
 #include "codegen.h"
@@ -131,189 +130,6 @@ v8::TryCatch* ThreadLocalTop::TryCatchHandler() {
 }
 
 
-// Create a dummy thread that will wait forever on a semaphore. The only
-// purpose for this thread is to have some stack area to save essential data
-// into for use by a stacks only core dump (aka minidump).
-class PreallocatedMemoryThread: public Thread {
- public:
-  char* data() {
-    if (data_ready_semaphore_ != NULL) {
-      // Initial access is guarded until the data has been published.
-      data_ready_semaphore_->Wait();
-      delete data_ready_semaphore_;
-      data_ready_semaphore_ = NULL;
-    }
-    return data_;
-  }
-
-  unsigned length() {
-    if (data_ready_semaphore_ != NULL) {
-      // Initial access is guarded until the data has been published.
-      data_ready_semaphore_->Wait();
-      delete data_ready_semaphore_;
-      data_ready_semaphore_ = NULL;
-    }
-    return length_;
-  }
-
-  // Stop the PreallocatedMemoryThread and release its resources.
-  void StopThread() {
-    keep_running_ = false;
-    wait_for_ever_semaphore_->Signal();
-
-    // Wait for the thread to terminate.
-    Join();
-
-    if (data_ready_semaphore_ != NULL) {
-      delete data_ready_semaphore_;
-      data_ready_semaphore_ = NULL;
-    }
-
-    delete wait_for_ever_semaphore_;
-    wait_for_ever_semaphore_ = NULL;
-  }
-
- protected:
-  // When the thread starts running it will allocate a fixed number of bytes
-  // on the stack and publish the location of this memory for others to use.
-  void Run() {
-    EmbeddedVector<char, 15 * 1024> local_buffer;
-
-    // Initialize the buffer with a known good value.
-    OS::StrNCpy(local_buffer, "Trace data was not generated.\n",
-                local_buffer.length());
-
-    // Publish the local buffer and signal its availability.
-    data_ = local_buffer.start();
-    length_ = local_buffer.length();
-    data_ready_semaphore_->Signal();
-
-    while (keep_running_) {
-      // This thread will wait here until the end of time.
-      wait_for_ever_semaphore_->Wait();
-    }
-
-    // Make sure we access the buffer after the wait to remove all possibility
-    // of it being optimized away.
-    OS::StrNCpy(local_buffer, "PreallocatedMemoryThread shutting down.\n",
-                local_buffer.length());
-  }
-
-
- private:
-  PreallocatedMemoryThread()
-      : Thread("v8:PreallocMem"),
-        keep_running_(true),
-        wait_for_ever_semaphore_(new Semaphore(0)),
-        data_ready_semaphore_(new Semaphore(0)),
-        data_(NULL),
-        length_(0) {
-  }
-
-  // Used to make sure that the thread keeps looping even for spurious wakeups.
-  bool keep_running_;
-
-  // This semaphore is used by the PreallocatedMemoryThread to wait for ever.
-  Semaphore* wait_for_ever_semaphore_;
-  // Semaphore to signal that the data has been initialized.
-  Semaphore* data_ready_semaphore_;
-
-  // Location and size of the preallocated memory block.
-  char* data_;
-  unsigned length_;
-
-  friend class Isolate;
-
-  DISALLOW_COPY_AND_ASSIGN(PreallocatedMemoryThread);
-};
-
-
-void Isolate::PreallocatedMemoryThreadStart() {
-  if (preallocated_memory_thread_ != NULL) return;
-  preallocated_memory_thread_ = new PreallocatedMemoryThread();
-  preallocated_memory_thread_->Start();
-}
-
-
-void Isolate::PreallocatedMemoryThreadStop() {
-  if (preallocated_memory_thread_ == NULL) return;
-  preallocated_memory_thread_->StopThread();
-  // Done with the thread entirely.
-  delete preallocated_memory_thread_;
-  preallocated_memory_thread_ = NULL;
-}
-
-
-void Isolate::PreallocatedStorageInit(size_t size) {
-  ASSERT(free_list_.next_ == &free_list_);
-  ASSERT(free_list_.previous_ == &free_list_);
-  PreallocatedStorage* free_chunk =
-      reinterpret_cast<PreallocatedStorage*>(new char[size]);
-  free_list_.next_ = free_list_.previous_ = free_chunk;
-  free_chunk->next_ = free_chunk->previous_ = &free_list_;
-  free_chunk->size_ = size - sizeof(PreallocatedStorage);
-  preallocated_storage_preallocated_ = true;
-}
-
-
-void* Isolate::PreallocatedStorageNew(size_t size) {
-  if (!preallocated_storage_preallocated_) {
-    return FreeStoreAllocationPolicy().New(size);
-  }
-  ASSERT(free_list_.next_ != &free_list_);
-  ASSERT(free_list_.previous_ != &free_list_);
-
-  size = (size + kPointerSize - 1) & ~(kPointerSize - 1);
-  // Search for exact fit.
-  for (PreallocatedStorage* storage = free_list_.next_;
-       storage != &free_list_;
-       storage = storage->next_) {
-    if (storage->size_ == size) {
-      storage->Unlink();
-      storage->LinkTo(&in_use_list_);
-      return reinterpret_cast<void*>(storage + 1);
-    }
-  }
-  // Search for first fit.
-  for (PreallocatedStorage* storage = free_list_.next_;
-       storage != &free_list_;
-       storage = storage->next_) {
-    if (storage->size_ >= size + sizeof(PreallocatedStorage)) {
-      storage->Unlink();
-      storage->LinkTo(&in_use_list_);
-      PreallocatedStorage* left_over =
-          reinterpret_cast<PreallocatedStorage*>(
-              reinterpret_cast<char*>(storage + 1) + size);
-      left_over->size_ = storage->size_ - size - sizeof(PreallocatedStorage);
-      ASSERT(size + left_over->size_ + sizeof(PreallocatedStorage) ==
-             storage->size_);
-      storage->size_ = size;
-      left_over->LinkTo(&free_list_);
-      return reinterpret_cast<void*>(storage + 1);
-    }
-  }
-  // Allocation failure.
-  ASSERT(false);
-  return NULL;
-}
-
-
-// We don't attempt to coalesce.
-void Isolate::PreallocatedStorageDelete(void* p) {
-  if (p == NULL) {
-    return;
-  }
-  if (!preallocated_storage_preallocated_) {
-    FreeStoreAllocationPolicy::Delete(p);
-    return;
-  }
-  PreallocatedStorage* storage = reinterpret_cast<PreallocatedStorage*>(p) - 1;
-  ASSERT(storage->next_->previous_ == storage);
-  ASSERT(storage->previous_->next_ == storage);
-  storage->Unlink();
-  storage->LinkTo(&free_list_);
-}
-
 Isolate* Isolate::default_isolate_ = NULL;
 Thread::LocalStorageKey Isolate::isolate_key_;
 Thread::LocalStorageKey Isolate::thread_id_key_;
@@ -845,16 +661,9 @@ void Isolate::PrintStack() {
 void Isolate::PrintStack(FILE* out) {
   if (stack_trace_nesting_level_ == 0) {
     stack_trace_nesting_level_++;
-
-    StringAllocator* allocator;
-    if (preallocated_message_space_ == NULL) {
-      allocator = new HeapStringAllocator();
-    } else {
-      allocator = preallocated_message_space_;
-    }
-
     StringStream::ClearMentionedObjectCache(this);
-    StringStream accumulator(allocator);
+    HeapStringAllocator allocator;
+    StringStream accumulator(&allocator);
     incomplete_message_ = &accumulator;
     PrintStack(&accumulator);
     accumulator.OutputToFile(out);
@@ -862,10 +671,6 @@ void Isolate::PrintStack(FILE* out) {
     accumulator.Log(this);
     incomplete_message_ = NULL;
     stack_trace_nesting_level_ = 0;
-    if (preallocated_message_space_ == NULL) {
-      // Remove the HeapStringAllocator created above.
-      delete allocator;
-    }
   } else if (stack_trace_nesting_level_ == 1) {
     stack_trace_nesting_level_++;
     OS::PrintError(
@@ -1724,8 +1529,6 @@ Isolate::Isolate()
       entry_stack_(NULL),
       stack_trace_nesting_level_(0),
       incomplete_message_(NULL),
-      preallocated_memory_thread_(NULL),
-      preallocated_message_space_(NULL),
       bootstrapper_(NULL),
       runtime_profiler_(NULL),
       compilation_cache_(NULL),
@@ -1747,9 +1550,6 @@ Isolate::Isolate()
       handle_scope_implementer_(NULL),
       unicode_cache_(NULL),
       runtime_zone_(this),
-      in_use_list_(0),
-      free_list_(0),
-      preallocated_storage_preallocated_(false),
       inner_pointer_to_code_cache_(NULL),
       write_iterator_(NULL),
       global_handles_(NULL),
@@ -1902,11 +1702,6 @@ void Isolate::Deinit() {
     builtins_.TearDown();
     bootstrapper_->TearDown();
 
-    // Remove the external reference to the preallocated stack memory.
-    delete preallocated_message_space_;
-    preallocated_message_space_ = NULL;
-    PreallocatedMemoryThreadStop();
-
     if (runtime_profiler_ != NULL) {
       runtime_profiler_->TearDown();
       delete runtime_profiler_;
@@ -2248,17 +2043,6 @@ bool Isolate::Init(Deserializer* des) {
     }
   }
 
-  // Only preallocate on the first initialization.
-  if (FLAG_preallocate_message_memory && preallocated_message_space_ == NULL) {
-    // Start the thread which will set aside some memory.
-    PreallocatedMemoryThreadStart();
-    preallocated_message_space_ =
-        new NoAllocationStringAllocator(
-            preallocated_memory_thread_->data(),
-            preallocated_memory_thread_->length());
-    PreallocatedStorageInit(preallocated_memory_thread_->length() / 4);
-  }
-
   if (FLAG_preemption) {
     v8::Locker locker(reinterpret_cast<v8::Isolate*>(this));
     v8::Locker::StartPreemption(reinterpret_cast<v8::Isolate*>(this), 100);

src/isolate.h

@@ -76,7 +76,6 @@ class HTracer;
 class InlineRuntimeFunctionsTable;
 class NoAllocationStringAllocator;
 class InnerPointerToCodeCache;
-class PreallocatedMemoryThread;
 class RandomNumberGenerator;
 class RegExpStack;
 class SaveContext;
@@ -331,7 +330,7 @@ class ThreadLocalTop BASE_EMBEDDED {
   V(uint32_t, private_random_seed, 2)                                          \
   ISOLATE_INIT_DEBUG_ARRAY_LIST(V)
 
-typedef List<HeapObject*, PreallocatedStorageAllocationPolicy> DebugObjectCache;
+typedef List<HeapObject*> DebugObjectCache;
 
 #define ISOLATE_INIT_LIST(V)                                                   \
   /* SerializerDeserializer state. */                                          \
@@ -978,10 +977,6 @@ class Isolate {
     return &interp_canonicalize_mapping_;
   }
 
-  void* PreallocatedStorageNew(size_t size);
-  void PreallocatedStorageDelete(void* p);
-  void PreallocatedStorageInit(size_t size);
-
   inline bool IsCodePreAgingActive();
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
@@ -1242,8 +1237,6 @@ class Isolate {
   // at the same time, this should be prevented using external locking.
   void Exit();
 
-  void PreallocatedMemoryThreadStart();
-  void PreallocatedMemoryThreadStop();
   void InitializeThreadLocal();
 
   void PrintStackTrace(FILE* out, ThreadLocalTop* thread);
@@ -1266,10 +1259,7 @@ class Isolate {
   EntryStackItem* entry_stack_;
   int stack_trace_nesting_level_;
   StringStream* incomplete_message_;
-  // The preallocated memory thread singleton.
-  PreallocatedMemoryThread* preallocated_memory_thread_;
   Address isolate_addresses_[kIsolateAddressCount + 1];  // NOLINT
-  NoAllocationStringAllocator* preallocated_message_space_;
   Bootstrapper* bootstrapper_;
   RuntimeProfiler* runtime_profiler_;
   CompilationCache* compilation_cache_;
@@ -1296,9 +1286,6 @@ class Isolate {
   HandleScopeImplementer* handle_scope_implementer_;
   UnicodeCache* unicode_cache_;
   Zone runtime_zone_;
-  PreallocatedStorage in_use_list_;
-  PreallocatedStorage free_list_;
-  bool preallocated_storage_preallocated_;
   InnerPointerToCodeCache* inner_pointer_to_code_cache_;
   ConsStringIteratorOp* write_iterator_;
   GlobalHandles* global_handles_;

src/scopeinfo.cc

@@ -32,8 +32,6 @@
 #include "scopeinfo.h"
 #include "scopes.h"
 
-#include "allocation-inl.h"
-
 namespace v8 {
 namespace internal {
 

src/scopes.cc

@@ -35,8 +35,6 @@
 #include "messages.h"
 #include "scopeinfo.h"
 
-#include "allocation-inl.h"
-
 namespace v8 {
 namespace internal {
 

src/string-stream.cc

@@ -30,8 +30,6 @@
 #include "factory.h"
 #include "string-stream.h"
 
-#include "allocation-inl.h"
-
 namespace v8 {
 namespace internal {
 
@@ -299,8 +297,7 @@ Handle<String> StringStream::ToString(Isolate* isolate) {
 void StringStream::ClearMentionedObjectCache(Isolate* isolate) {
   isolate->set_string_stream_current_security_token(NULL);
   if (isolate->string_stream_debug_object_cache() == NULL) {
-    isolate->set_string_stream_debug_object_cache(
-        new List<HeapObject*, PreallocatedStorageAllocationPolicy>(0));
+    isolate->set_string_stream_debug_object_cache(new DebugObjectCache(0));
   }
   isolate->string_stream_debug_object_cache()->Clear();
 }

test/mjsunit/regexp-multiline-stack-trace.js

-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// The flags below are to test the trace-calls functionality and the
-// preallocated meessage memory.
-// Flags: --trace-calls --preallocate-message-memory
-
-/**
- * @fileoverview Check that various regexp constructs work as intended.
- * Particularly those regexps that use ^ and $.
- */
-
-assertTrue(/^bar/.test("bar"));
-assertTrue(/^bar/.test("bar\nfoo"));
-assertFalse(/^bar/.test("foo\nbar"));
-assertTrue(/^bar/m.test("bar"));
-assertTrue(/^bar/m.test("bar\nfoo"));
-assertTrue(/^bar/m.test("foo\nbar"));
-
-assertTrue(/bar$/.test("bar"));
-assertFalse(/bar$/.test("bar\nfoo"));
-assertTrue(/bar$/.test("foo\nbar"));
-assertTrue(/bar$/m.test("bar"));
-assertTrue(/bar$/m.test("bar\nfoo"));
-assertTrue(/bar$/m.test("foo\nbar"));
-
-assertFalse(/^bxr/.test("bar"));
-assertFalse(/^bxr/.test("bar\nfoo"));
-assertFalse(/^bxr/m.test("bar"));
-assertFalse(/^bxr/m.test("bar\nfoo"));
-assertFalse(/^bxr/m.test("foo\nbar"));
-
-assertFalse(/bxr$/.test("bar"));
-assertFalse(/bxr$/.test("foo\nbar"));
-assertFalse(/bxr$/m.test("bar"));
-assertFalse(/bxr$/m.test("bar\nfoo"));
-assertFalse(/bxr$/m.test("foo\nbar"));
-
-
-assertTrue(/^.*$/.test(""));
-assertTrue(/^.*$/.test("foo"));
-assertFalse(/^.*$/.test("\n"));
-assertTrue(/^.*$/m.test("\n"));
-
-assertTrue(/^[\s]*$/.test(" "));
-assertTrue(/^[\s]*$/.test("\n"));
-
-assertTrue(/^[^]*$/.test(""));
-assertTrue(/^[^]*$/.test("foo"));
-assertTrue(/^[^]*$/.test("\n"));
-
-assertTrue(/^([()\s]|.)*$/.test("()\n()"));
-assertTrue(/^([()\n]|.)*$/.test("()\n()"));
-assertFalse(/^([()]|.)*$/.test("()\n()"));
-assertTrue(/^([()]|.)*$/m.test("()\n()"));
-assertTrue(/^([()]|.)*$/m.test("()\n"));
-assertTrue(/^[()]*$/m.test("()\n."));
-
-assertTrue(/^[\].]*$/.test("...]..."));
-
-
-function check_case(lc, uc) {
-  var a = new RegExp("^" + lc + "$");
-  assertFalse(a.test(uc));
-  a = new RegExp("^" + lc + "$", "i");
-  assertTrue(a.test(uc));
-
-  var A = new RegExp("^" + uc + "$");
-  assertFalse(A.test(lc));
-  A = new RegExp("^" + uc + "$", "i");
-  assertTrue(A.test(lc));
-
-  a = new RegExp("^[" + lc + "]$");
-  assertFalse(a.test(uc));
-  a = new RegExp("^[" + lc + "]$", "i");
-  assertTrue(a.test(uc));
-
-  A = new RegExp("^[" + uc + "]$");
-  assertFalse(A.test(lc));
-  A = new RegExp("^[" + uc + "]$", "i");
-  assertTrue(A.test(lc));
-}
-
-
-check_case("a", "A");
-// Aring
-check_case(String.fromCharCode(229), String.fromCharCode(197));
-// Russian G
-check_case(String.fromCharCode(0x413), String.fromCharCode(0x433));
-
-
-assertThrows("a = new RegExp('[z-a]');");