fixup! fix($parse): correctly escape unsafe identifier characters

Author: gkalpak

src/ng/parse.js

@@ -1261,7 +1261,7 @@ ASTCompiler.prototype = {
   },
 
   nonComputedMember: function(left, right) {
-    var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]$/;
+    var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/;
     var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g;
     if (SAFE_IDENTIFIER.test(right)) {
       return left + '.' + right;