Revert of Replace LANGUAGE_END with LAST_LANGUAGE_MODE (patchset #1 id:1 of...

Revert of Replace LANGUAGE_END with LAST_LANGUAGE_MODE (patchset #1 id:1 of https://codereview.chromium.org/2257703003/ )

Reason for revert:
Needed to land revert https://codereview.chromium.org/2257133002/

Original issue's description:
> Replace LANGUAGE_END with LAST_LANGUAGE_MODE
>
> BUG=
>
> Committed: https://crrev.com/9324efca85710ebb14f21ef8476447e21cbe3f35
> Cr-Commit-Position: refs/heads/master@{#38707}

TBR=neis@chromium.org,marja@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2259853002
Cr-Commit-Position: refs/heads/master@{#38713}

src/ast/scopes.h

@@ -496,7 +496,7 @@ class Scope: public ZoneObject {
   // Scope-specific information computed during parsing.
   //
   // The language mode of this scope.
-  STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(LANGUAGE_END == 2);
   LanguageMode language_mode_ : 1;
   // This scope is inside a 'with' of some outer scope.
   bool scope_inside_with_ : 1;

src/code-stubs.h

@@ -1846,7 +1846,7 @@ class StoreGlobalViaContextStub final : public PlatformCodeStub {
   class DepthBits : public BitField<int, 0, 4> {};
   STATIC_ASSERT(DepthBits::kMax == kMaximumDepth);
   class LanguageModeBits : public BitField<LanguageMode, 4, 1> {};
-  STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(LANGUAGE_END == 2);
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(StoreGlobalViaContext);
   DEFINE_PLATFORM_CODE_STUB(StoreGlobalViaContext, PlatformCodeStub);

src/globals.h

@@ -272,7 +272,7 @@ template <typename T, class P = FreeStoreAllocationPolicy> class List;
 
 // The Strict Mode (ECMA-262 5th edition, 4.2.2).
 
-enum LanguageMode : uint32_t { SLOPPY, STRICT, LAST_LANGUAGE_MODE = STRICT };
+enum LanguageMode : uint32_t { SLOPPY, STRICT, LANGUAGE_END };
 
 inline std::ostream& operator<<(std::ostream& os, const LanguageMode& mode) {
   switch (mode) {

src/ic/ic-state.h

@@ -258,7 +258,7 @@ class StoreICState final BASE_EMBEDDED {
   }
 
   class LanguageModeState : public BitField<LanguageMode, 1, 1> {};
-  STATIC_ASSERT(i::LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(i::LANGUAGE_END == 2);
 
   // For convenience, a statically declared encoding of strict mode extra
   // IC state.

src/objects-inl.h

@@ -6015,14 +6015,14 @@ void SharedFunctionInfo::set_optimization_disabled(bool disable) {
 
 
 LanguageMode SharedFunctionInfo::language_mode() {
-  STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(LANGUAGE_END == 2);
   return construct_language_mode(
       BooleanBit::get(compiler_hints(), kStrictModeFunction));
 }
 
 
 void SharedFunctionInfo::set_language_mode(LanguageMode language_mode) {
-  STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(LANGUAGE_END == 2);
   // We only allow language mode transitions that set the same language mode
   // again or go up in the chain:
   DCHECK(is_sloppy(this->language_mode()) || is_strict(language_mode));

src/objects.cc

@@ -9168,7 +9168,7 @@ Handle<Map> Map::AsLanguageMode(Handle<Map> initial_map,
   Handle<Map> function_map(
       Map::cast(isolate->native_context()->get(map_index)));
 
-  STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(LANGUAGE_END == 2);
   DCHECK_EQ(STRICT, language_mode);
   Handle<Symbol> transition_symbol =
       isolate->factory()->strict_function_transition_symbol();
@@ -16013,7 +16013,7 @@ class StringSharedKey : public HashTableKey {
       // collection.
       Script* script(Script::cast(shared->script()));
       hash ^= String::cast(script->source())->Hash();
-      STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+      STATIC_ASSERT(LANGUAGE_END == 2);
       if (is_strict(language_mode)) hash ^= 0x8000;
       hash += scope_position;
     }

src/objects.h

@@ -4404,7 +4404,7 @@ class ScopeInfo : public FixedArray {
   // Properties of scopes.
   class ScopeTypeField : public BitField<ScopeType, 0, 4> {};
   class CallsEvalField : public BitField<bool, ScopeTypeField::kNext, 1> {};
-  STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+  STATIC_ASSERT(LANGUAGE_END == 2);
   class LanguageModeField
       : public BitField<LanguageMode, CallsEvalField::kNext, 1> {};
   class DeclarationScopeField

src/parsing/parser.h

@@ -175,7 +175,7 @@ class ParseInfo {
     return construct_language_mode(is_strict_mode());
   }
   void set_language_mode(LanguageMode language_mode) {
-    STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+    STATIC_ASSERT(LANGUAGE_END == 2);
     set_strict_mode(is_strict(language_mode));
   }
 

src/runtime/runtime.h

@@ -1135,7 +1135,7 @@ class AllocateTargetSpace : public BitField<AllocationSpace, 1, 3> {};
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
-STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+STATIC_ASSERT(LANGUAGE_END == 2);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 1> {};
 
 }  // namespace internal

test/unittests/compiler/js-typed-lowering-unittest.cc

@@ -65,7 +65,7 @@ const double kIntegerValues[] = {-V8_INFINITY, INT_MIN, -1000.0,  -42.0,
 Type* const kJSTypes[] = {Type::Undefined(), Type::Null(),   Type::Boolean(),
                           Type::Number(),    Type::String(), Type::Object()};
 
-STATIC_ASSERT(LAST_LANGUAGE_MODE == 1);
+STATIC_ASSERT(LANGUAGE_END == 2);
 const LanguageMode kLanguageModes[] = {SLOPPY, STRICT};
 
 }  // namespace