Fix typo in comment. Patch by Matthew Dempsky!

llvm-svn: 184495
diff --git a/clang/lib/CodeGen/CGException.cpp b/clang/lib/CodeGen/CGException.cpp
index b01fdd4..0c2cfc4 100644
--- a/clang/lib/CodeGen/CGException.cpp
+++ b/clang/lib/CodeGen/CGException.cpp
@@ -89,7 +89,7 @@
 }
 
 static llvm::Constant *getUnexpectedFn(CodeGenModule &CGM) {
-  // void __cxa_call_unexepcted(void *thrown_exception);
+  // void __cxa_call_unexpected(void *thrown_exception);
 
   llvm::FunctionType *FTy =
     llvm::FunctionType::get(CGM.VoidTy, CGM.Int8PtrTy, /*IsVarArgs=*/false);