Fix -Wignored-qualifier and -Wunused-variable warnings

SPIRV/GlslangToSpv.cpp

@@ -5383,8 +5383,10 @@ spv::Id TGlslangToSpvTraverser::createAtomicOperation(glslang::TOperator op, spv
 // Create group invocation operations.
 spv::Id TGlslangToSpvTraverser::createInvocationsOperation(glslang::TOperator op, spv::Id typeId, std::vector<spv::Id>& operands, glslang::TBasicType typeProxy)
 {
+#ifdef AMD_EXTENSIONS
     bool isUnsigned = isTypeUnsignedInt(typeProxy);
     bool isFloat = isTypeFloat(typeProxy);
+#endif
 
     spv::Op opCode = spv::OpNop;
     std::vector<spv::Id> spvGroupOperands;

glslang/MachineIndependent/reflection.h

@@ -59,7 +59,7 @@ public:
         name(pName), offset(pOffset),
         glDefineType(pGLDefineType), size(pSize), index(pIndex), counterIndex(-1), stages(EShLanguageMask(0)), type(pType.clone()) { }
 
-    const TType* const getType() const { return type; }
+    const TType* getType() const { return type; }
     int getBinding() const
     {
         if (type == nullptr || !type->getQualifier().hasBinding())