Significant Validation Improvement

[markwpearce]

• Adds metrics for validation (link time and validation time)
• Refactored namespace linking to make better use of file-level caching
• Adds significant changes to how validation is performed:
  • Whole scopes are culled from validation if there are not changes that effect that immediate scope
  • Better file culling for name shadowing checks based on changed symbols

Overall, this should cut initial validation time down to about 40%, and should make validation changes in editor much faster...

BEFORE:

% npm run validate

> jellyfin-roku@2.0.5 validate
> npx bsc --copy-to-staging=false --create-package=false

[10:21:34:1920 PM]  Using config file: "/roku/jellyfin-roku_2/bsconfig.json"
[10:21:34:1940 PM]  Loading 0 plugins for cwd "/roku/jellyfin-roku_2"
[10:21:34:2060 PM]  load files
[10:21:34:8270 PM]  load files finished. (620.515ms)
[10:21:34:8270 PM]  Validating project
[10:21:44:6830 PM]  Validating project finished. (9s855.268ms)

AFTER (this is log-level "info"):

% npm run validate

> jellyfin-roku@2.0.5 validate
> npx bsc --copy-to-staging=false --create-package=false --log-level=info

[11:44:09:6900 AM]  Using config file: "/roku/jellyfin-roku_2/bsconfig.json"
[11:44:09:6920 AM]  Loading 0 plugins for cwd "/roku/jellyfin-roku_2"
[11:44:09:7010 AM]  load files
[11:44:10:2920 AM]  load files finished. (590.650ms)
[11:44:10:2920 AM]  Validating project
[11:44:10:6730 AM]    Build component types
[11:44:10:7000 AM]    Build component types finished. (27.114ms)
[11:44:10:7010 AM]    Validate all scopes
[11:44:14:3260 AM]    Validate all scopes finished. (3s624.666ms)
[11:44:14:3260 AM]    Validation Metrics: filesValidated=305, fileValidationTime=276.499ms, fileInfoGenerationTime=103.664ms, programValidationTime=0.308ms, scopesValidated=139, totalLinkTime=600.8ms, totalScopeValidationTime=2s944.775ms, componentValidationTime=0.567ms
[11:44:14:3290 AM]  Validating project finished. (4s37.58ms)
[11:44:14:3300 AM]  Program.getDiagnostics()
[11:44:14:3380 AM]    diagnostic counts: total=54, after filter=50
[11:44:14:3380 AM]  Program.getDiagnostics() finished. (8.233ms)
[11:44:14:3400 AM]  Program.getDiagnostics()
[11:44:14:3430 AM]    diagnostic counts: total=54, after filter=50
[11:44:14:3430 AM]  Program.getDiagnostics() finished. (3.603ms)