Prepare push to trunk. Now working on version 3.18.6.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14646011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14497 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2013-04-30: Version 3.18.5
+
+        Allowed setting debugger breakpoints on CompareNilICs (issue 2660)
+
+        Fixed beyond-heap load on x64 Crankshafted StringCharFromCode
+        (Chromium issue 235311)
+
+        Change 'Parse error' to three more informative messages.
+        (Chromium issue 2636)
+
+        Performance and stability improvements on all platforms.
+
+
 2013-04-26: Version 3.18.4
 
         Added a preliminary API for ES6 ArrayBuffers

src/version.cc

@@ -34,7 +34,7 @@
 // system so their names cannot be changed without changing the scripts.
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     18
-#define BUILD_NUMBER      5
+#define BUILD_NUMBER      6
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)