Both GLSL 1.10 and 1.20 specs say:
"The #version directive must occur in a shader before anything else, except for comments and white space."

But glsl/tests/glslparsertest/shaders/CorrectVersion1.V110.frag fails with below output:

Successfully compiled fragment shader /GFX/Test/Piglit_ext/piglit/tests/glslparsertest/shaders/CorrectVersion1.V110.frag: (no compiler output)

Output:
PIGLIT: {'result': 'fail' }


This piglit test case was changed as below with http://cgit.freedesktop.org/piglit/commit/?id=5752c9a33a66e91544a6af2e926833183318357b

/* Only one version statement is allowed; two should raise an error. */
#version 110
#version 110