Remove RequiresInstanceFieldInitializer bit from ParseInfo

This information is already stored in compiler_hints_. This saves 1
bit on ParseInfo.

Change-Id: I37927c256aacd18fb332b522989dc669aa80df01
Reviewed-on: https://chromium-review.googlesource.com/858427Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50483}

src/parsing/parse-info.cc

@@ -60,8 +60,6 @@ ParseInfo::ParseInfo(Handle<SharedFunctionInfo> shared)
   function_literal_id_ = shared->function_literal_id();
   set_language_mode(shared->language_mode());
   set_asm_wasm_broken(shared->is_asm_wasm_broken());
-  set_requires_instance_fields_initializer(
-      shared->requires_instance_fields_initializer());
 
   Handle<Script> script(Script::cast(shared->script()));
   set_script(script);
@@ -158,6 +156,11 @@ FunctionKind ParseInfo::function_kind() const {
   return SharedFunctionInfo::FunctionKindBits::decode(compiler_hints_);
 }
 
+bool ParseInfo::requires_instance_fields_initializer() const {
+  return SharedFunctionInfo::RequiresInstanceFieldsInitializer::decode(
+      compiler_hints_);
+}
+
 void ParseInfo::InitFromIsolate(Isolate* isolate) {
   DCHECK_NOT_NULL(isolate);
   set_hash_seed(isolate->heap()->HashSeed());

src/parsing/parse-info.h

@@ -79,9 +79,6 @@ class V8_EXPORT_PRIVATE ParseInfo {
   FLAG_ACCESSOR(kCollectTypeProfile, collect_type_profile,
                 set_collect_type_profile)
   FLAG_ACCESSOR(kIsAsmWasmBroken, is_asm_wasm_broken, set_asm_wasm_broken)
-  FLAG_ACCESSOR(kRequiresInstanceFieldsInitializer,
-                requires_instance_fields_initializer,
-                set_requires_instance_fields_initializer)
   FLAG_ACCESSOR(kBlockCoverageEnabled, block_coverage_enabled,
                 set_block_coverage_enabled)
   FLAG_ACCESSOR(kOnBackgroundThread, on_background_thread,
@@ -210,6 +207,7 @@ class V8_EXPORT_PRIVATE ParseInfo {
   // Getters for individual compiler hints.
   bool is_declaration() const;
   FunctionKind function_kind() const;
+  bool requires_instance_fields_initializer() const;
 
   //--------------------------------------------------------------------------
   // TODO(titzer): these should not be part of ParseInfo.
@@ -263,9 +261,8 @@ class V8_EXPORT_PRIVATE ParseInfo {
     kCollectTypeProfile = 1 << 10,
     kBlockCoverageEnabled = 1 << 11,
     kIsAsmWasmBroken = 1 << 12,
-    kRequiresInstanceFieldsInitializer = 1 << 13,
-    kOnBackgroundThread = 1 << 14,
-    kWrappedAsFunction = 1 << 15,  // Implicitly wrapped as function.
+    kOnBackgroundThread = 1 << 13,
+    kWrappedAsFunction = 1 << 14,  // Implicitly wrapped as function.
   };
 
   //------------- Inputs to parsing and scope analysis -----------------------