Change the error when a '+=' follows a declaration to suggest a fixit to '=' instead of just suggesting a ';'.

Old error:
plusequaldeclare1.cc:3:8: error: expected ';' at end of declaration
  int x += 6;
       ^
       ;

New error:
plusequaldeclare1.cc:3:9: error: invalid '+=' at end of declaration; did you
      mean '='?
  int x += 6;
        ^~
        =



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148433 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 1c7c45e..0de8c53 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -1269,8 +1269,12 @@
     D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto;
 
   // Parse declarator '=' initializer.
-  if (isTokenEqualOrMistypedEqualEqual(
-                               diag::err_invalid_equalequal_after_declarator)) {
+  // If a '==' or '+=' is found, suggest a fixit to '='.
+  if (Tok.is(tok::equal) ||
+      CreateTokenReplacement(tok::equal, tok::equalequal,
+                             diag::err_invalid_equalequal_after_declarator) ||
+      CreateTokenReplacement(tok::equal, tok::plusequal,
+                             diag::err_invalid_plusequal_after_declarator)) {
     ConsumeToken();
     if (Tok.is(tok::kw_delete)) {
       if (D.isFunctionDeclarator())