For all keywords already present, get correct when they could be identifiers, are reserved words, or are keywords, for all versions of ESSL and GLSL.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@21282 e7fa87d3-cd2b-0410-9028-fcbf551c1848