Support the #extension GL_ARB_fragment_coord_conventions.

Signed-off-by: ZhiqianXia <xzq0528@outlook.com>

gtests/AST.FromFile.cpp

@@ -287,6 +287,7 @@ INSTANTIATE_TEST_SUITE_P(
         "atomicCounterARBOps.vert",
         "GL_EXT_shader_integer_mix.vert",
         "GL_ARB_draw_instanced.vert",
+        "GL_ARB_fragment_coord_conventions.vert"
     })),
     FileNameAsCustomTestSuffix
 );