Pass Isolate* more explicitly in Parser, with less reliance on info->isolate().

src/parser.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PARSER_H_
 #define V8_PARSER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/compiler.h"  // For CachedDataMode
@@ skipping 636 matching lines @@
 
   // Parses the source code represented by the compilation info and sets its
   // function literal.  Returns false (and deallocates any allocated AST
   // nodes) if parsing failed.
   static bool ParseStatic(CompilationInfo* info, bool allow_lazy = false);
   bool Parse(CompilationInfo* info);
   void ParseOnBackground(CompilationInfo* info);
 
   // Handle errors detected during parsing, move statistics to Isolate,
   // internalize strings (move them to the heap).
-  void Internalize(CompilationInfo* info);
-  void HandleSourceURLComments(CompilationInfo* info);
+  void Internalize(Isolate* isolate, Handle<Script> script, bool error);
+  void HandleSourceURLComments(Isolate* isolate, Handle<Script> script);
 
  private:
   friend class ParserTraits;
 
   // Limit the allowed number of local variables in a function. The hard limit
   // is that offsets computed by FullCodeGenerator::StackOperand and similar
   // functions are ints, and they should not overflow. In addition, accessing
   // local variables creates user-controlled constants in the generated code,
   // and we don't want too much user-controlled memory inside the code (this was
   // the reason why this limit was introduced in the first place; see
   // https://codereview.chromium.org/7003030/ ).
   static const int kMaxNumFunctionLocals = 4194303;  // 2^22-1
 
   // Returns NULL if parsing failed.
-  FunctionLiteral* ParseProgram(CompilationInfo* info);
+  FunctionLiteral* ParseProgram(Isolate* isolate, CompilationInfo* info);
 
-  FunctionLiteral* ParseLazy(CompilationInfo* info);
-  FunctionLiteral* ParseLazy(CompilationInfo* info,
+  FunctionLiteral* ParseLazy(Isolate* isolate, CompilationInfo* info);
+  FunctionLiteral* ParseLazy(Isolate* isolate, CompilationInfo* info,
                              Utf16CharacterStream* source);
 
   // Called by ParseProgram after setting up the scanner.
   FunctionLiteral* DoParseProgram(CompilationInfo* info, Scope** scope,
                                   Scope** ad_hoc_eval_scope);
 
   void SetCachedData(CompilationInfo* info);
 
   bool inside_with() const { return scope_->inside_with(); }
   ScriptCompiler::CompileOptions compile_options() const {
@@ skipping 260 matching lines @@
 }
 
 
 Expression* ParserTraits::CloseTemplateLiteral(TemplateLiteralState* state,
                                                int start, Expression* tag) {
   return parser_->CloseTemplateLiteral(state, start, tag);
 }
 } }  // namespace v8::internal
 
 #endif  // V8_PARSER_H_