Renamed "mips" arch to "mipsel" in the GYP build.

Fixed computation of call targets on prototypes in Crankshaft. (Chromium issue 125148)

Removed use of __lookupGetter__ when generating stack trace. (issue 1591)

Turned on ES 5.2 globals semantics by default. (issue 1991, Chromium issue 80591)

Synced preparser and parser wrt syntax error in switch..case. (issue 2210)

Fixed reporting of octal literals in strict mode when preparsing. (issue 2220)

Fixed inline constructors for Harmony Proxy prototypes. (issue 2225)

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@12057 ce2b1a6d-e550-0410-aec6-3dcde31c8c00