glslang tests: Get same form of IEEE INF across platforms.  Submitted by Lei Zhang (antiagainst@google.com) and David Neto (dneto@google.com).

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31210 e7fa87d3-cd2b-0410-9028-fcbf551c1848