Turn off a warning caused by my last patch.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181464 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/CommentLexer.cpp b/lib/AST/CommentLexer.cpp
index a59bada..b195d52 100644
--- a/lib/AST/CommentLexer.cpp
+++ b/lib/AST/CommentLexer.cpp
@@ -355,7 +355,7 @@
         if (!Info) {
           formTokenWithChars(T, TokenPtr, tok::unknown_command);
           T.setUnknownCommandName(CommandName);
-          if (Info = Traits.getTypoCorrectCommandInfo(CommandName)) {
+          if ((Info = Traits.getTypoCorrectCommandInfo(CommandName))) {
             StringRef CorrectedName = Info->Name;
             SourceRange CommandRange(T.getLocation().getLocWithOffset(1),
                                      T.getEndLocation());