Method IsStruct

Source/SpireCore/Syntax.cpp:745–751

			return false;
		}
		bool ExpressionType::IsStruct() const
		{
			auto basicType = AsBasicType();
			if (basicType)
				return basicType->structDecl != nullptr;
			return false;
		}
		bool ExpressionType::IsShader() const
		{
			auto basicType = AsBasicType();