KhronosGroup/WebGL — pull request #361 by zhenyao (2013-09-06 01:29:44+00:00)
Title: Test about unwritten gl_Position in vertex shaders.

float_literal.vert.html should not test about missing gl_Position.
Add two extra tests to cover that:
empty_main.vert.html
gl_position_unset.vert.html