Issue good diagnostics when initializing a refernce type with
a bad initializer. Fixes pr4274.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83169 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 223662a..1966aeb 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -3703,9 +3703,14 @@
           Diag(Func->getLocation(), diag::err_ovl_candidate);
         }
       }
-      else
-        Diag(DeclLoc, diag::err_lvalue_to_rvalue_ref)
-          << Init->getSourceRange();
+      else {
+        if (isRValRef)
+          Diag(DeclLoc, diag::err_lvalue_to_rvalue_ref) 
+            << Init->getSourceRange();
+        else
+          Diag(DeclLoc, diag::err_invalid_initialization)
+            << DeclType << Init->getType() << Init->getSourceRange();
+      }
     }
     return badConversion;
   }