Fix a couple crashes on invalid input.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51622 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 936604e..2296f57 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -328,6 +328,7 @@
 
     if (!Result.isInvalid)
       return Actions.ActOnFileScopeAsmDecl(Tok.getLocation(), Result.Val);
+    return 0;
   }
   case tok::at:
     // @ is not a legal token unless objc is enabled, no need to check.
@@ -653,7 +654,7 @@
   
   if (Tok.isNot(tok::l_paren)) {
     Diag(Tok, diag::err_expected_lparen_after, "asm");
-    return 0;
+    return true;
   }
   
   ConsumeParen();