Fix a bug in ia32 shift left , implemented more inlined binary operations in x64.

runtime/vm/token.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_TOKEN_H_
 #define VM_TOKEN_H_
 
 #include "platform/assert.h"
 
 namespace dart {
@@ skipping 160 matching lines @@
   KW(kTHIS, "this", 0, kKeyword)                                               \
   KW(kTHROW, "throw", 0, kKeyword)                                             \
   KW(kTRUE, "true", 0, kKeyword)                                               \
   KW(kTRY, "try", 0, kKeyword)                                                 \
   KW(kTYPEDEF, "typedef", 0, kPseudoKeyword)                                   \
   KW(kVAR, "var", 0, kKeyword)                                                 \
   KW(kVOID, "void", 0, kKeyword)                                               \
   KW(kWHILE, "while", 0, kKeyword) /* == kLastKeyword */
 
 
+class String;
+
 class Token {
  public:
 #define T(t, s, p, a) t,
   enum Kind {
     DART_TOKEN_LIST(T)
     DART_KEYWORD_LIST(T)
     kNumTokens
   };
 #undef T
 
@@ skipping 68 matching lines @@
 
   static bool NeedsLiteralToken(Kind tok) {
     ASSERT(tok < kNumTokens);
     return ((tok == Token::kINTEGER) ||
             (tok == Token::kSTRING) ||
             (tok == Token::kINTERPOL_VAR) ||
             (tok == Token::kERROR) ||
             (tok == Token::kDOUBLE));
   }
 
+  // Returns kILLEGAL if 'name' does not match a BinaryOp.
+  static Token::Kind GetBinaryOp(const String& name);
+
  private:
   static const char* name_[];
   static const char* tok_str_[];
   static const uint8_t precedence_[];
   static const Attribute attributes_[];
 };
 
 
 }  // namespace dart
 
 #endif  // VM_TOKEN_H_