Fixed 64-bit integer truncation issues in shader translator. This is an incompatible API change, but one which is necessary in order to improve correctness of the code. The API version in ShaderLang.h is updated and, unfortunately, the define renamed to something less ambiguous due to conflicts on some Android buildbots. Temporary patches in Chromium and WebKit will be landed separately to support this upgrade. BUG=403,404,405,406,407,408,409 Review URL: https://codereview.appspot.com/7300058 Conflicts: include/GLSLANG/ShaderLang.h git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1960 736b8ea6-26fd-11df-bfd4-992fa37f6226