[WebAssembly] Pass ArrayRef by value (NFC) (#85732)

`ArrayRef` is supposed to be passed by value:

https://github.com/llvm/llvm-project/blob/bda05140fb758156ae35f3919e6283d94bfa3905/llvm/include/llvm/ADT/ArrayRef.h#L38-L39

Author: aheejin

llvm/lib/Target/WebAssembly/Utils/WebAssemblyTypeUtilities.cpp

@@ -63,7 +63,7 @@ wasm::ValType WebAssembly::toValType(MVT Type) {
 }
 
 void WebAssembly::wasmSymbolSetType(MCSymbolWasm *Sym, const Type *GlobalVT,
-                                    const ArrayRef<MVT> &VTs) {
+                                    ArrayRef<MVT> VTs) {
   assert(!Sym->getType());
 
   // Tables are represented as Arrays in LLVM IR therefore

llvm/lib/Target/WebAssembly/Utils/WebAssemblyTypeUtilities.h

@@ -60,7 +60,7 @@ wasm::ValType toValType(MVT Type);
 
 /// Sets a Wasm Symbol Type.
 void wasmSymbolSetType(MCSymbolWasm *Sym, const Type *GlobalVT,
-                       const ArrayRef<MVT> &VTs);
+                       ArrayRef<MVT> VTs);
 
 } // end namespace WebAssembly
 } // end namespace llvm

llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp

@@ -105,7 +105,7 @@ void llvm::computeSignatureVTs(const FunctionType *Ty,
   }
 }
 
-void llvm::valTypesFromMVTs(const ArrayRef<MVT> &In,
+void llvm::valTypesFromMVTs(ArrayRef<MVT> In,
                             SmallVectorImpl<wasm::ValType> &Out) {
   for (MVT Ty : In)
     Out.push_back(WebAssembly::toValType(Ty));

llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h

@@ -169,8 +169,7 @@ void computeSignatureVTs(const FunctionType *Ty, const Function *TargetFunc,
                          SmallVectorImpl<MVT> &Params,
                          SmallVectorImpl<MVT> &Results);
 
-void valTypesFromMVTs(const ArrayRef<MVT> &In,
-                      SmallVectorImpl<wasm::ValType> &Out);
+void valTypesFromMVTs(ArrayRef<MVT> In, SmallVectorImpl<wasm::ValType> &Out);
 
 std::unique_ptr<wasm::WasmSignature>
 signatureFromMVTs(const SmallVectorImpl<MVT> &Results,

llvm/lib/Target/WebAssembly/WebAssemblyRegColoring.cpp

@@ -129,7 +129,7 @@ buildVRegToDbgValueMap(MachineFunction &MF, const LiveIntervals *Liveness) {
 // changes.
 static void undefInvalidDbgValues(
     const LiveIntervals *Liveness,
-    const ArrayRef<SmallVector<LiveInterval *, 4>> &Assignments,
+    ArrayRef<SmallVector<LiveInterval *, 4>> Assignments,
     DenseMap<Register, std::vector<std::pair<SlotIndex, MachineInstr *>>>
         &DbgVRegToValues) {
 #ifndef NDEBUG