Add AST tests for mesh and task shaders
with subgroup touch testing (error and non-error cases)
Add missing symbolTable.relateToOperator("subgroupMemoryBarrierShared") call for
Mesh/Task shaders so they don't assert in ParseHelper.cpp
diff --git a/gtests/AST.FromFile.cpp b/gtests/AST.FromFile.cpp
index d4e7fb6..5e79144 100644
--- a/gtests/AST.FromFile.cpp
+++ b/gtests/AST.FromFile.cpp
@@ -253,6 +253,8 @@
"glsl.450.subgroupShuffleRelative.comp",
"glsl.450.subgroupQuad.comp",
"glsl.450.subgroupVote.comp",
+ "glsl.460.subgroup.mesh",
+ "glsl.460.subgroup.task",
"glsl.es320.subgroup.frag",
"glsl.es320.subgroup.geom",
"glsl.es320.subgroup.tesc",