when expr is broken, completion is not executed

[Constellation]

such as:

var obj = {
  target: function() {
    var o = { test: "OK" };
    o.<COMPLETION POINT>

completion is not fired.

because, ObjectLiteral expression is broken, so not defined in Recovery AST.

[Constellation]

1st plan

add function literal to nearest function literal and do realize it in completion phase

2nd plan

implement Expression based recovery system

[Constellation]

1st plan is adopted.

done in d455a11