GlslangToSpv: Properly handle opaque types in TranslateStorageClass

SPIRV/GlslangToSpv.cpp

@@ -227,13 +227,15 @@ spv::StorageClass TranslateStorageClass(const glslang::TType& type)
         return spv::StorageClassInput;
     else if (type.getQualifier().isPipeOutput())
         return spv::StorageClassOutput;
+    else if (type.getBasicType() == glslang::EbtSampler)
+        return spv::StorageClassUniformConstant;
+    else if (type.getBasicType() == glslang::EbtAtomicUint)
+        return spv::StorageClassAtomicCounter;
     else if (type.getQualifier().isUniformOrBuffer()) {
         if (type.getQualifier().layoutPushConstant)
             return spv::StorageClassPushConstant;
         if (type.getBasicType() == glslang::EbtBlock)
             return spv::StorageClassUniform;
-        else if (type.getBasicType() == glslang::EbtAtomicUint)
-            return spv::StorageClassAtomicCounter;
         else
             return spv::StorageClassUniformConstant;
         // TODO: how are we distuingishing between default and non-default non-writable uniforms?  Do default uniforms even exist?