do not consider keywords tokens for compleation reasons, to allow completion on this and super

Author: mhegazy

src/services/services.ts

@@ -1734,8 +1734,7 @@ module ts {
             }
 
             function isToken(kind: SyntaxKind) {
-                return (SyntaxKind.FirstPunctuation <= kind && kind <= SyntaxKind.LastPunctuation) ||
-                    (SyntaxKind.FirstKeyword <= kind && kind <= SyntaxKind.LastKeyword);
+                return (SyntaxKind.FirstPunctuation <= kind && kind <= SyntaxKind.LastPunctuation);
             }
 
             synchronizeHostData();