Use a .def file for most of the diagnostic options.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166520 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/Warnings.cpp b/lib/Frontend/Warnings.cpp
index a60fe95..f789b7f 100644
--- a/lib/Frontend/Warnings.cpp
+++ b/lib/Frontend/Warnings.cpp
@@ -51,8 +51,7 @@
                                   const DiagnosticOptions &Opts) {
   Diags.setSuppressSystemWarnings(true);  // Default to -Wno-system-headers
   Diags.setIgnoreAllWarnings(Opts.IgnoreWarnings);
-  Diags.setShowOverloads(
-    static_cast<DiagnosticsEngine::OverloadsShown>(Opts.ShowOverloads));
+  Diags.setShowOverloads(Opts.getShowOverloads());
 
   Diags.setElideType(Opts.ElideType);
   Diags.setPrintTemplateTree(Opts.ShowTemplateTree);