[AppleScript] sregex compatibility

[michaelblyons]

Additions:

• add tests for applescript scopes
• add more granular sub-scopes
• add completions for applications from ScriptEditor
• add completions for standard library from ScriptEditor

Changes:

• bump syntax to v2
• removed lookbehinds for sregex-compatibility, compare Remove Incompatible Regex Patterns #481
• move tests for conflict markers in applescript, compare [Common] Add git conflict marker highlighting #4047
• use var to sync shebang lang, compare [Common] Use variables to keep shebang in sync #4219

References:

• addresses Remove Incompatible Regex Patterns #481
• addresses [Common] Add git conflict marker highlighting #4047
• addresses [Common] Use variables to keep shebang in sync #4219

[jrappen]

Thanks for working on this.

I still have some left-overs from rainy days from autumn with what I started with while going through this package. Should I send you a zip via Discord?

[michaelblyons]

Okay, now I'm doing more work on it.

[jrappen]

• If you use pop: 1 in the added lines, you should bump to v2 and replace remaining pop: true from unchanged lines. If tests fail, there's a list of differences between v1 and v2 at https://www.sublimetext.com/docs/syntax.html#compatibility, but you knew that.
• Were you going to add some of the completions I sent you? Some of the files are empty, and the ones that can be used might need a fix in trigger to remove spaces where there are some. But I tried to add as much to details as I could find from the offical docs, so that might be helpful. I can do it myself in a later PR too, whatever works for you.

Otherwise LGTM.

[deathaxe]

Can't say too much about AppleScript itself, but syntax LGTM!