Replace is_reference_error bool argument with ParseErrorType enum

src/globals.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_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 778 matching lines @@
 // immediately initialized upon creation (kCreatedInitialized).
 enum InitializationFlag {
   kNeedsInitialization,
   kCreatedInitialized
 };
 
 
 enum MaybeAssignedFlag { kNotAssigned, kMaybeAssigned };
 
 
+// Serialized in PreparseData, so numeric values should not be changed.
+enum ParseErrorType { kSyntaxError = 0, kReferenceError = 1 };
+
+
 enum ClearExceptionFlag {
   KEEP_EXCEPTION,
   CLEAR_EXCEPTION
 };
 
 
 enum MinusZeroMode {
   TREAT_MINUS_ZERO_AS_ZERO,
   FAIL_ON_MINUS_ZERO
 };
@@ skipping 77 matching lines @@
   DCHECK(IsValidFunctionKind(kind));
   return kind &
          (FunctionKind::kBaseConstructor | FunctionKind::kSubclassConstructor |
           FunctionKind::kDefaultConstructor);
 }
 } }  // namespace v8::internal
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_