Use StringRef in Pass/PassManager APIs (NFC)

llvm-svn: 283004
diff --git a/llvm/lib/Transforms/Instrumentation/IndirectCallPromotion.cpp b/llvm/lib/Transforms/Instrumentation/IndirectCallPromotion.cpp
index 2e91d21..1ba13bd 100644
--- a/llvm/lib/Transforms/Instrumentation/IndirectCallPromotion.cpp
+++ b/llvm/lib/Transforms/Instrumentation/IndirectCallPromotion.cpp
@@ -111,9 +111,7 @@
         *PassRegistry::getPassRegistry());
   }
 
-  const char *getPassName() const override {
-    return "PGOIndirectCallPromotion";
-  }
+  StringRef getPassName() const override { return "PGOIndirectCallPromotion"; }
 
 private:
   bool runOnModule(Module &M) override;