feat: support TS4.1 features

[bradzacher]

Fixes #2583

• Adds AST for Key Remapping in Mapped Types and Template Literal Types
• Adds visitor keys for the above
• Adds scope manager support for the above (just tests were required as it all is pretty simple)
• Regenerates the scope-manager lib types

[typescript-eslint]

Thanks for the PR, @bradzacher!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!

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[codecov]

Codecov Report

Merging #2748 (c2c1eb8) into master (e82698c) will increase coverage by 0.00%.
The diff coverage is 94.73%.

@@           Coverage Diff           @@
##           master    #2748   +/-   ##
=======================================
  Coverage   92.79%   92.80%           
=======================================
  Files         297      300    +3     
  Lines        9833     9849   +16     
  Branches     2762     2765    +3     
=======================================
+ Hits         9125     9140   +15     
  Misses        332      332           
- Partials      376      377    +1     

Flag	Coverage Δ
unittest	92.80% <94.73%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/eslint-plugin/src/configs/all.ts	100.00% <ø> (ø)
...src/configs/recommended-requiring-type-checking.ts	100.00% <ø> (ø)
...ackages/eslint-plugin/src/rules/no-implied-eval.ts	93.75% <ø> (ø)
...ackages/eslint-plugin/src/rules/no-invalid-this.ts	95.83% <ø> (ø)
...ckages/eslint-plugin/src/rules/no-throw-literal.ts	95.00% <ø> (ø)
packages/scope-manager/src/lib/dom.iterable.ts	100.00% <ø> (ø)
packages/scope-manager/src/lib/dom.ts	100.00% <ø> (ø)
packages/scope-manager/src/lib/es2015.iterable.ts	100.00% <ø> (ø)
packages/scope-manager/src/lib/es5.ts	100.00% <ø> (ø)
packages/scope-manager/src/lib/webworker.ts	100.00% <ø> (ø)
... and 13 more

[sosukesuzuki]

@bradzacher Hi, Thanks for implementing this PR! Could you tell me when typescript-eslint/typescript-estree with TS 4.1 support will be released? We are now considering whether to include TS 4.1 support in the next minor version of Prettier.

[bradzacher]

Same all of our releases!
Monday 10am PST

[sosukesuzuki]

Okay, Thank you!