[TextEditor] Fixed reserved keyowords in F# language.
Fixed 'Bug 19811 - F# reserved OCAML token asr fails to highlight'
Fixed 'Bug 19812 - F# reserved OCAML token land fails to highlight'
Fixed 'Bug 19813 - F# reserved OCAML token lor fails to highlight'
Fixed 'Bug 19814 - F# reserved OCAML token lsl fails to highlight'
Fixed 'Bug 19815 - F# reserved OCAML token lsr fails to highlight'
Fixed 'Bug 19816 - F# reserved OCAML token lxor fails to highlight'
Fixed 'Bug 19817 - F# reserved OCAML token mod fails to highlight'