Cleanups for test cases:

- Allow a code-generation target of `NONE` in order to suppress ordinary output in test cases where we don't care about the actual output (just pass/fail result)

- Add explicit `location` layout qualifiers to intermediate vertex-to-fragment variables in GLSL test cases for rendering, to work around apparent Intel driver bugs.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/slang/compiler.cpp b/source/slang/compiler.cpp
index f9c188764..2f6204eb2 100644
--- a/source/slang/compiler.cpp
+++ b/source/slang/compiler.cpp
@@ -461,6 +461,10 @@ namespace Slang
             }
             break;
 
+        case CodeGenTarget::None:
+            // The user requested no output
+            break;
+
         // Note(tfoley): We currently hit this case when compiling the stdlib
         case CodeGenTarget::Unknown:
             break;