X64 adaption: Changed a constant from kBitsPerPointer to kBitsPerInt.

Still stays within the size of Smi and works with a uint32_t bitfield.
Bitfield might need to be extended to handle a larger base.

Review URL: http://codereview.chromium.org/109020


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs.h

@@ -72,7 +72,7 @@ class CodeStub BASE_EMBEDDED {
 
  protected:
   static const int kMajorBits = 5;
-  static const int kMinorBits = kBitsPerPointer - kMajorBits - kSmiTagSize;
+  static const int kMinorBits = kBitsPerInt - kSmiTagSize - kMajorBits;
 
  private:
   // Generates the assembler code for the stub.