Setting ordinal for control code escapes

spec/parser/javascript/escape_spec.js

@@ -29,7 +29,7 @@ describe('parser/javascript/escape.js', function() {
     '\\8': { label: 'Back reference (group = 8)', ordinal: -1 },
     '\\9': { label: 'Back reference (group = 9)', ordinal: -1 },
     '\\012': { label: 'octal: 12', ordinal: 10 },
-    '\\cx': { label: 'ctrl-x', ordinal: -1 },
+    '\\cx': { label: 'ctrl-X', ordinal: 24 },
     '\\xab': { label: '0xAB', ordinal: 0xab },
     '\\uabcd': { label: 'U+ABCD', ordinal: 0xabcd }
   }, (content, str) => {