Prepare push to trunk. Now working on version 3.12.5.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10704002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2012-06-27: Version 3.12.4
+
+        Removed -fomit-frame-pointer flag from Release builds to make
+        the stack walkable by TCMalloc (Chromium issue 133723).
+
+        Ported r7868 (constant masking) to x64 (issue 1374).
+
+        Expose more detailed memory statistics (issue 2201).
+
+        Fixed Harmony Maps and WeakMaps for undefined values
+        (Chromium issue 132744).
+
+        Correctly throw reference error in strict mode with ICs disabled
+        (issue 2119).
+
+        Performance and stability improvements on all platforms.
+
+
 2012-06-25: Version 3.12.3
 
         Reverted r11835 'Unify promotion and allocation limit computation' due

src/version.cc

@@ -34,7 +34,7 @@
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     12
-#define BUILD_NUMBER      4
+#define BUILD_NUMBER      5
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)