KhronosGroup/WebGL — pull request #514 by Oletus (2014-04-03 17:35:28+00:00)
Title: Show translated shader source using WEBGL_debug_shaders in glsl tests

The translated shader source can be useful when debugging shader
translator or GPU driver issues, so display it alongside the original
source if WEBGL_debug_shaders is available.

Also includes some cleanup of related code.