When we encounter a '==' in a context expecting a '=', assume the user made a typo:

t.c:1:7: error: invalid '==' at end of declaration; did you mean '='?
int x == 0;
      ^~
      =

Implements rdar://8488464.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116035 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseExprCXX.cpp b/lib/Parse/ParseExprCXX.cpp
index e8b921b..77cb449 100644
--- a/lib/Parse/ParseExprCXX.cpp
+++ b/lib/Parse/ParseExprCXX.cpp
@@ -821,9 +821,10 @@
                                                                 DeclaratorInfo);
   DeclOut = Dcl.get();
   ExprOut = ExprError();
-  
+
   // '=' assignment-expression
-  if (Tok.is(tok::equal)) {
+  if (isTokenEqualOrMistypedEqualEqual(
+                               diag::err_invalid_equalequal_after_declarator)) {
     SourceLocation EqualLoc = ConsumeToken();
     ExprResult AssignExpr(ParseAssignmentExpression());
     if (!AssignExpr.isInvalid())