Add a -fcxx-exceptions flag to clang -cc1. This controls the newly added CXXExceptions flag.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126300 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index 8d56a42..d5e4d00 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -418,10 +418,12 @@
 def fheinous_gnu_extensions : Flag<"-fheinous-gnu-extensions">;
 def fexceptions : Flag<"-fexceptions">,
   HelpText<"Enable support for exception handling">;
+def fobjc_exceptions : Flag<"-fobjc-exceptions">,
+  HelpText<"Enable Objective-C exceptions">;
+def fcxx_exceptions : Flag<"-fcxx-exceptions">,
+  HelpText<"Enable C++ exceptions">;
 def fsjlj_exceptions : Flag<"-fsjlj-exceptions">,
   HelpText<"Use SjLj style exceptions">;
-def fobjc_exceptions : Flag<"-fobjc-exceptions">,
-  HelpText<"Disable Objective-C exceptions">;
 def ffreestanding : Flag<"-ffreestanding">,
   HelpText<"Assert that the compilation takes place in a freestanding environment">;
 def fgnu_runtime : Flag<"-fgnu-runtime">,