Grammar bug fixes

[fabriciocolombo]

This issue it's just to keep track of grammar changes.

[6a1bddf] Improve detection of Custom Attributes, Generic Types and Anonymous methods.
[b702c9f] Detect complex array declaration.
[cb8ae84] Detect label usage.
[8c9fbbd] Recognize strict and out keywords as identifiers.
[ce9fdcc] Usage of qualified class as ancestor class.
[6714753] Recognize export keyword as identifier
[567fe76] Support for Code Paged AnsiStrings.
[7ad9289] Accept visibility for record helpers and keyword implements as identifier.