Apply clang-tidy fixes for performance-unnecessary-value-param in Utils.cpp (NFC)

Author: joker-eph

mlir/include/mlir/Dialect/GPU/TransformOps/Utils.h

@@ -66,7 +66,7 @@ struct GpuIdBuilder {
 
   GpuIdBuilder() = default;
   GpuIdBuilder(MLIRContext *ctx, bool useLinearMapping,
-               MappingIdBuilderFnType builder);
+               const MappingIdBuilderFnType &builder);
 
   /// The mapping attributes targeted by this generator.
   SmallVector<DeviceMappingAttrInterface> mappingAttributes;

mlir/lib/Dialect/GPU/TransformOps/Utils.cpp

@@ -169,7 +169,7 @@ namespace transform {
 namespace gpu {
 
 GpuIdBuilder::GpuIdBuilder(MLIRContext *ctx, bool useLinearMapping,
-                           MappingIdBuilderFnType fn)
+                           const MappingIdBuilderFnType &fn)
     : mappingAttributes(), idBuilder() {
   if (useLinearMapping) {
     for (uint64_t d = static_cast<uint64_t>(MappingId::LinearDim0),