New try: Parser: Delay internalizing strings and values

src/heap.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_HEAP_H_
 #define V8_HEAP_H_
 
 #include <cmath>
 
 #include "src/allocation.h"
@@ skipping 259 matching lines @@
   V(Arguments_string, "Arguments")                                       \
   V(call_string, "call")                                                 \
   V(apply_string, "apply")                                               \
   V(caller_string, "caller")                                             \
   V(boolean_string, "boolean")                                           \
   V(Boolean_string, "Boolean")                                           \
   V(callee_string, "callee")                                             \
   V(constructor_string, "constructor")                                   \
   V(dot_result_string, ".result")                                        \
   V(dot_for_string, ".for.")                                             \
-  V(dot_iterable_string, ".iterable")                                    \
-  V(dot_iterator_string, ".iterator")                                    \
-  V(dot_generator_object_string, ".generator_object")                    \
   V(eval_string, "eval")                                                 \
   V(empty_string, "")                                                    \
   V(function_string, "function")                                         \
   V(length_string, "length")                                             \
-  V(module_string, "module")                                             \
   V(name_string, "name")                                                 \
-  V(native_string, "native")                                             \
   V(null_string, "null")                                                 \
   V(number_string, "number")                                             \
   V(Number_string, "Number")                                             \
   V(nan_string, "NaN")                                                   \
   V(RegExp_string, "RegExp")                                             \
   V(source_string, "source")                                             \
   V(global_string, "global")                                             \
   V(ignore_case_string, "ignoreCase")                                    \
   V(multiline_string, "multiline")                                       \
   V(input_string, "input")                                               \
   V(index_string, "index")                                               \
   V(last_index_string, "lastIndex")                                      \
   V(object_string, "object")                                             \
   V(literals_string, "literals")                                         \
   V(prototype_string, "prototype")                                       \
   V(string_string, "string")                                             \
   V(String_string, "String")                                             \
   V(symbol_string, "symbol")                                             \
   V(Symbol_string, "Symbol")                                             \
   V(for_string, "for")                                                   \
   V(for_api_string, "for_api")                                           \
   V(for_intern_string, "for_intern")                                     \
   V(private_api_string, "private_api")                                   \
   V(private_intern_string, "private_intern")                             \
   V(Date_string, "Date")                                                 \
-  V(this_string, "this")                                                 \
   V(to_string_string, "toString")                                        \
   V(char_at_string, "CharAt")                                            \
   V(undefined_string, "undefined")                                       \
   V(value_of_string, "valueOf")                                          \
   V(stack_string, "stack")                                               \
   V(toJSON_string, "toJSON")                                             \
   V(InitializeVarGlobal_string, "InitializeVarGlobal")                   \
   V(InitializeConstGlobal_string, "InitializeConstGlobal")               \
   V(KeyedLoadElementMonomorphic_string,                                  \
     "KeyedLoadElementMonomorphic")                                       \
   V(KeyedStoreElementMonomorphic_string,                                 \
     "KeyedStoreElementMonomorphic")                                      \
   V(stack_overflow_string, "kStackOverflowBoilerplate")                  \
   V(illegal_access_string, "illegal access")                             \
   V(get_string, "get")                                                   \
   V(set_string, "set")                                                   \
   V(map_field_string, "%map")                                            \
   V(elements_field_string, "%elements")                                  \
   V(length_field_string, "%length")                                      \
   V(cell_value_string, "%cell_value")                                    \
   V(function_class_string, "Function")                                   \
   V(illegal_argument_string, "illegal argument")                         \
-  V(MakeReferenceError_string, "MakeReferenceError")                     \
-  V(MakeSyntaxError_string, "MakeSyntaxError")                           \
-  V(MakeTypeError_string, "MakeTypeError")                               \
-  V(unknown_label_string, "unknown_label")                               \
   V(space_string, " ")                                                   \
   V(exec_string, "exec")                                                 \
   V(zero_string, "0")                                                    \
   V(global_eval_string, "GlobalEval")                                    \
   V(identity_hash_string, "v8::IdentityHash")                            \
   V(closure_string, "(closure)")                                         \
-  V(use_strict_string, "use strict")                                     \
   V(dot_string, ".")                                                     \
-  V(anonymous_function_string, "(anonymous function)")                   \
   V(compare_ic_string, "==")                                             \
   V(strict_compare_ic_string, "===")                                     \
   V(infinity_string, "Infinity")                                         \
   V(minus_infinity_string, "-Infinity")                                  \
   V(hidden_stack_trace_string, "v8::hidden_stack_trace")                 \
   V(query_colon_string, "(?:)")                                          \
   V(Generator_string, "Generator")                                       \
   V(throw_string, "throw")                                               \
   V(done_string, "done")                                                 \
   V(value_string, "value")                                               \
@@ skipping 2430 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_