llvm-exegesis - fix shadow variable warnings. NFCI.
diff --git a/llvm/tools/llvm-exegesis/lib/Assembler.cpp b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
index 4983823..631aed0 100644
--- a/llvm/tools/llvm-exegesis/lib/Assembler.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
@@ -70,7 +70,7 @@
   return false;
 }
 
-MachineFunction &createVoidVoidPtrMachineFunction(StringRef FunctionID,
+MachineFunction &createVoidVoidPtrMachineFunction(StringRef FunctionName,
                                                   Module *Module,
                                                   MachineModuleInfo *MMI) {
   Type *const ReturnType = Type::getInt32Ty(Module->getContext());
@@ -79,7 +79,7 @@
   FunctionType *FunctionType =
       FunctionType::get(ReturnType, {MemParamType}, false);
   Function *const F = Function::Create(
-      FunctionType, GlobalValue::InternalLinkage, FunctionID, Module);
+      FunctionType, GlobalValue::InternalLinkage, FunctionName, Module);
   // Making sure we can create a MachineFunction out of this Function even if it
   // contains no IR.
   F->setIsMaterializable(true);