Turn Flags into a uint32_t typedef.

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4281 matching lines @@
 
 // Forward declaration.
 class SafepointEntry;
 class TypeFeedbackInfo;
 
 // Code describes objects with on-the-fly generated machine code.
 class Code: public HeapObject {
  public:
   // Opaque data type for encapsulating code flags like kind, inline
   // cache state, and arguments count.
-  // FLAGS_MIN_VALUE and FLAGS_MAX_VALUE are specified to ensure that
-  // enumeration type has correct value range (see Issue 830 for more details).
-  enum Flags {
-    FLAGS_MIN_VALUE = 0,
-    FLAGS_MAX_VALUE = kMaxUInt32
-  };
+  typedef uint32_t Flags;
 
 #define CODE_KIND_LIST(V) \
   V(FUNCTION)             \
   V(OPTIMIZED_FUNCTION)   \
   V(STUB)                 \
   V(COMPILED_STUB)        \
   V(BUILTIN)              \
   V(LOAD_IC)              \
   V(KEYED_LOAD_IC)        \
   V(CALL_IC)              \
@@ skipping 4948 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_