Add support for property Aliases

[isc-kiyer]

I don't see Intellisense for property aliases. For example:

Property Name As %String(MAXLEN = "") [ Aliases = {SourceDirectory} ];

For the above, I would expect intellisense/autocompletion for both the Name and SourceDirectory property of the class.

Version info:

IRIS: IRIS for UNIX (Apple Mac OS X for x86-64) 2023.1.2 (Build 450_0_22983U) Mon Dec 18 2023 19:24:32 EST Language Server: 2.4.3 VS code: Version: 1.86.0 (Universal) Commit: 05047486b6df5eb8d44b2ecd70ea3bdf775fd937 Date: 2024-01-31T10:29:15.765Z Electron: 27.2.3 ElectronBuildId: 26495564 Chromium: 118.0.5993.159 Node.js: 18.17.1 V8: 11.8.172.18-electron.0 OS: Darwin x64 22.6.0

[isc-bsaviano]

I can look into this but TBH I've never seen this before and I'm not why you'd ever want to use it.

[isc-kiyer]

Thanks! I had never seen it before either until today but is in a shared codebase so not my choice.