Prepare push to trunk. Now working on version 3.12.8.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10695078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2012-07-03: Version 3.12.7
+
+        Fixed lazy compilation for strict eval scopes.
+        (Chromium issue 135066)
+
+        Made MACOSX_DEPLOYMENT_TARGET configurable in GYP.
+        (issue 2151)
+
+        Report "hidden properties" in heap profiler for properties case.
+        (issue 2212)
+
+        Activated optimization of packed arrays by default.
+
+        Performance and stability improvements on all platforms.
+
+
 2012-06-29: Version 3.12.6
 
         Cleaned up hardfp ABI detection for ARM (V8 issue 2140).

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      7
+#define BUILD_NUMBER      8
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)