Fix handling of implicit int, resolving PR2012 and reverting (and

subsuming) my patch for PR1999.

llvm-svn: 49251

clang/lib/Parse/Parser.cpp

@@ -467,7 +467,7 @@ Parser::DeclTy *Parser::ParseFunctionDefinition(Declarator &D) {
   // If this is C90 and the declspecs were completely missing, fudge in an
   // implicit int.  We do this here because this is the only place where
   // declaration-specifiers are completely optional in the grammar.
-  if (getLang().isC90() && !D.getDeclSpec().getParsedSpecifiers() == 0) {
+  if (getLang().ImplicitInt && D.getDeclSpec().getParsedSpecifiers() == 0) {
     const char *PrevSpec;
     D.getDeclSpec().SetTypeSpecType(DeclSpec::TST_int, D.getIdentifierLoc(),
                                     PrevSpec);