Use correct BitField arguments in CEntryStub.

R=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/494543003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23362 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs.h

@@ -1491,7 +1491,7 @@ class CEntryStub : public PlatformCodeStub {
   bool NeedsImmovableCode();
 
   class SaveDoublesBits : public BitField<bool, 0, 1> {};
-  class ResultSizeBits : public BitField<int, 3, 1> {};
+  class ResultSizeBits : public BitField<int, 1, 3> {};
 };