Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp b/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
index f604e43..4519641 100644
--- a/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
+++ b/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp
@@ -36,9 +36,7 @@
     ResetMachineFunction(bool EmitFallbackDiag = false)
         : MachineFunctionPass(ID), EmitFallbackDiag(EmitFallbackDiag) {}
 
-    const char *getPassName() const override {
-      return "ResetMachineFunction";
-    }
+    StringRef getPassName() const override { return "ResetMachineFunction"; }
 
     bool runOnMachineFunction(MachineFunction &MF) override {
       if (MF.getProperties().hasProperty(