Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp b/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
index f37ee59..7c54f8d 100644
--- a/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
+++ b/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
@@ -256,9 +256,7 @@
 
   bool runOnRegion(Region *R, RGPassManager &RGM) override;
 
-  const char *getPassName() const override {
-    return "Structurize control flow";
-  }
+  StringRef getPassName() const override { return "Structurize control flow"; }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     if (SkipUniformRegions)