Commits on Oct 12, 2020

1. feat(typescript-estree): add flag EXPERIMENTAL_useSourceOfProjectRefe… …

   …renceRedirect
   
   See #2094
   This is quick-and-dirty to get this out there for some users to see what sort of perf improvements this squeezes out.
   
   With the flag turned on:
   ```
   bradzacher@bradzacher-mbp typescript-eslint % DEBUG=typescript-eslint:* yarn eslint ./packages/types/src/index.ts ./packages/eslint-plugin/src/index.ts
   yarn run v1.22.4
   $ /Users/bradzacher/github/typescript-eslint/node_modules/.bin/eslint ./packages/types/src/index.ts ./packages/eslint-plugin/src/index.ts
     typescript-eslint:typescript-estree:parser parserOptions.project (excluding ignored) matched projects: [
     './tsconfig.eslint.json',
     './tests/integration/utils/jsconfig.json',
     './packages/eslint-plugin/tsconfig.json',
     './packages/eslint-plugin-internal/tsconfig.json',
     './packages/eslint-plugin-tslint/tsconfig.json',
     './packages/experimental-utils/tsconfig.json',
     './packages/parser/tsconfig.json',
     './packages/scope-manager/tsconfig.json',
     './packages/shared-fixtures/tsconfig.json',
     './packages/types/tsconfig.json',
     './packages/typescript-estree/tsconfig.json',
     './packages/visitor-keys/tsconfig.json'
   ] +0ms
     typescript-eslint:typescript-estree:createProjectProgram Creating project program for: /Users/bradzacher/github/typescript-eslint/packages/types/src/index.ts +0ms
     typescript-eslint:typescript-estree:createWatchProgram File did not belong to any existing programs, moving to create/update. /users/bradzacher/github/typescript-eslint/packages/types/src/index.ts +0ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/tsconfig.eslint.json. +0ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/tests/integration/utils/jsconfig.json. +1s
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/eslint-plugin/tsconfig.json. +844ms
     typescript-eslint:typescript-estree:createWatchProgram Found program for file. /users/bradzacher/github/typescript-eslint/packages/types/src/index.ts +2s
     typescript-eslint:parser:parser Resolved libs from program: [ 'es2017' ] +0ms
     typescript-eslint:typescript-estree:parser parserOptions.project (excluding ignored) matched projects: [
     './tsconfig.eslint.json',
     './tests/integration/utils/jsconfig.json',
     './packages/eslint-plugin/tsconfig.json',
     './packages/eslint-plugin-internal/tsconfig.json',
     './packages/eslint-plugin-tslint/tsconfig.json',
     './packages/experimental-utils/tsconfig.json',
     './packages/parser/tsconfig.json',
     './packages/scope-manager/tsconfig.json',
     './packages/shared-fixtures/tsconfig.json',
     './packages/types/tsconfig.json',
     './packages/typescript-estree/tsconfig.json',
     './packages/visitor-keys/tsconfig.json'
   ] +5s
     typescript-eslint:typescript-estree:createProjectProgram Creating project program for: /Users/bradzacher/github/typescript-eslint/packages/eslint-plugin/src/index.ts +5s
     typescript-eslint:typescript-estree:createWatchProgram Found existing program for file. /users/bradzacher/github/typescript-eslint/packages/eslint-plugin/src/index.ts +74ms
     typescript-eslint:parser:parser Resolved libs from program: [ 'es2017' ] +70ms
   ✨  Done in 6.50s.
   ```
   
   With the flag turned off:
   ```
   bradzacher@bradzacher-mbp typescript-eslint % DEBUG=typescript-eslint:* yarn eslint ./packages/types/src/index.ts ./packages/eslint-plugin/src/index.ts
   yarn run v1.22.4
   $ /Users/bradzacher/github/typescript-eslint/node_modules/.bin/eslint ./packages/types/src/index.ts ./packages/eslint-plugin/src/index.ts
     typescript-eslint:typescript-estree:parser parserOptions.project (excluding ignored) matched projects: [
     './tsconfig.eslint.json',
     './tests/integration/utils/jsconfig.json',
     './packages/eslint-plugin/tsconfig.json',
     './packages/eslint-plugin-internal/tsconfig.json',
     './packages/eslint-plugin-tslint/tsconfig.json',
     './packages/experimental-utils/tsconfig.json',
     './packages/parser/tsconfig.json',
     './packages/scope-manager/tsconfig.json',
     './packages/shared-fixtures/tsconfig.json',
     './packages/types/tsconfig.json',
     './packages/typescript-estree/tsconfig.json',
     './packages/visitor-keys/tsconfig.json'
   ] +0ms
     typescript-eslint:typescript-estree:createProjectProgram Creating project program for: /Users/bradzacher/github/typescript-eslint/packages/types/src/index.ts +0ms
     typescript-eslint:typescript-estree:createWatchProgram File did not belong to any existing programs, moving to create/update. /users/bradzacher/github/typescript-eslint/packages/types/src/index.ts +0ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/tsconfig.eslint.json. +1ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/tests/integration/utils/jsconfig.json. +1s
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/eslint-plugin/tsconfig.json. +976ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/eslint-plugin-internal/tsconfig.json. +2s
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/eslint-plugin-tslint/tsconfig.json. +1s
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/experimental-utils/tsconfig.json. +1s
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/parser/tsconfig.json. +961ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/scope-manager/tsconfig.json. +888ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/shared-fixtures/tsconfig.json. +996ms
     typescript-eslint:typescript-estree:createWatchProgram Creating watch program for /users/bradzacher/github/typescript-eslint/packages/types/tsconfig.json. +561ms
     typescript-eslint:typescript-estree:createWatchProgram Found program for file. /users/bradzacher/github/typescript-eslint/packages/types/src/index.ts +567ms
     typescript-eslint:parser:parser Resolved libs from program: [ 'es2017' ] +0ms
     typescript-eslint:typescript-estree:parser parserOptions.project (excluding ignored) matched projects: [
     './tsconfig.eslint.json',
     './tests/integration/utils/jsconfig.json',
     './packages/eslint-plugin/tsconfig.json',
     './packages/eslint-plugin-internal/tsconfig.json',
     './packages/eslint-plugin-tslint/tsconfig.json',
     './packages/experimental-utils/tsconfig.json',
     './packages/parser/tsconfig.json',
     './packages/scope-manager/tsconfig.json',
     './packages/shared-fixtures/tsconfig.json',
     './packages/types/tsconfig.json',
     './packages/typescript-estree/tsconfig.json',
     './packages/visitor-keys/tsconfig.json'
   ] +11s
     typescript-eslint:typescript-estree:createProjectProgram Creating project program for: /Users/bradzacher/github/typescript-eslint/packages/eslint-plugin/src/index.ts +11s
     typescript-eslint:typescript-estree:createWatchProgram Found existing program for file. /users/bradzacher/github/typescript-eslint/packages/eslint-plugin/src/index.ts +64ms
     typescript-eslint:parser:parser Resolved libs from program: [ 'es2017' ] +60ms
   ✨  Done in 12.26s.
   ```

   

   bradzacher committed Oct 12, 2020
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2. spelling

   

   bradzacher committed Oct 12, 2020
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   ec0151c View commit details

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3. nit move comments

   

   bradzacher committed Oct 12, 2020
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   8ae1895 View commit details

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