[llvm] [SPIR-V] Fix return type when sampling an image with OpImageSampleExplicitLod (PR #89252)

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``````````bash
git-clang-format --diff a02019960b1a693320cd43b0ed6653d95877b94f 89dc0140b84e8a98a3450505adf4bf0ef6847200 -- llvm/lib/Target/SPIRV/SPIRVBuiltins.cpp llvm/lib/Target/SPIRV/SPIRVUtils.cpp llvm/lib/Target/SPIRV/SPIRVUtils.h
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/SPIRV/SPIRVUtils.cpp b/llvm/lib/Target/SPIRV/SPIRVUtils.cpp
index 35fda7960e..871b95a280 100644
--- a/llvm/lib/Target/SPIRV/SPIRVUtils.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVUtils.cpp
@@ -369,7 +369,7 @@ bool isEntryPoint(const Function &F) {
   return false;
 }
 
-Type *parseBasicTypeName(StringRef& TypeName, LLVMContext &Ctx) {
+Type *parseBasicTypeName(StringRef &TypeName, LLVMContext &Ctx) {
   TypeName.consume_front("atomic_");
   if (TypeName.consume_front("void"))
     return Type::getVoidTy(Ctx);
diff --git a/llvm/lib/Target/SPIRV/SPIRVUtils.h b/llvm/lib/Target/SPIRV/SPIRVUtils.h
index 71576b7394..6a91b6e576 100644
--- a/llvm/lib/Target/SPIRV/SPIRVUtils.h
+++ b/llvm/lib/Target/SPIRV/SPIRVUtils.h
@@ -100,7 +100,7 @@ bool isSpecialOpaqueType(const Type *Ty);
 bool isEntryPoint(const Function &F);
 
 // Parse basic scalar type name, substring TypeName, and return LLVM type.
-Type *parseBasicTypeName(StringRef& TypeName, LLVMContext &Ctx);
+Type *parseBasicTypeName(StringRef &TypeName, LLVMContext &Ctx);
 
 // True if this is an instance of TypedPointerType.
 inline bool isTypedPointerTy(const Type *T) {

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https://github.com/llvm/llvm-project/pull/89252