convert the rest of the stderr users in codegen to use diagnostics.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44503 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CGExprComplex.cpp b/CodeGen/CGExprComplex.cpp
index 085e837..3368c28 100644
--- a/CodeGen/CGExprComplex.cpp
+++ b/CodeGen/CGExprComplex.cpp
@@ -232,8 +232,7 @@
 //===----------------------------------------------------------------------===//
 
 ComplexPairTy ComplexExprEmitter::VisitExpr(Expr *E) {
-  fprintf(stderr, "Unimplemented complex expr!\n");
-  E->dump(CGF.getContext().SourceMgr);
+  CGF.WarnUnsupported(E, "complex expression");
   const llvm::Type *EltTy = 
     CGF.ConvertType(E->getType()->getAsComplexType()->getElementType());
   llvm::Value *U = llvm::UndefValue::get(EltTy);