Specify the underlying type of enum class.

nkcsgexi · nkcsgexi · commit c994a3b36c88 · 2016-06-21T10:48:04.000-07:00
diff --git a/lib/Sema/MiscDiagnostics.cpp b/lib/Sema/MiscDiagnostics.cpp
@@ -2509,7 +2509,7 @@ void swift::performAbstractFuncDeclDiagnostics(TypeChecker &TC,
 /// Diagnose C style for loops.
 
 namespace {
-enum class OperatorKind {
+enum class OperatorKind : char {
   Greater,
   Smaller,
   NotEqual,
