fix(typescript-estree): correct issues in AST definition

[armano2]

Those changes has been extracted from #3078

fixes #2912

ProgramStatement and Statement nodes can contain same set of nodes

if (x) export {x}
if (x) import test from 'x'
// -----
for (x in foo) {
  export {x}
}
// -----
function test (x: string) {
  export {x}
}

LeftHandSideExpression can be a AwaitExpression

const a = ++(await x)

TryStatement finalizer can be null

try {} catch {}

RegExpLiteral value can be null if regexp is invalid or unsupported by env

good example in this case can be any proposal that has not been accepted yet
eg. https://github.com/tc39/proposal-regexp-match-indices

const x = /a+(?<Z>z)?/d

JSXOpeningElement attributes can be a JSXSpreadAttribute

const foo = <x {...spread}></x>

TSModuleDeclaration body can be TSModuleDeclaration

// TSModuleDeclaration without body
module "x";
// TSModuleDeclaration -> TSModuleBlock
module x {
}
// TSModuleDeclaration -> TSModuleDeclaration **
module x.x {
}

[typescript-eslint]

Thanks for the PR, @armano2!

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 #3083 (ac64fe0) into master (409bf0b) will increase coverage by 0.00%.
The diff coverage is 90.90%.

@@           Coverage Diff           @@
##           master    #3083   +/-   ##
=======================================
  Coverage   92.83%   92.83%           
=======================================
  Files         314      314           
  Lines       10671    10672    +1     
  Branches     3027     3027           
=======================================
+ Hits         9906     9907    +1     
  Misses        348      348           
  Partials      417      417           

Flag	Coverage Δ
unittest	92.83% <90.90%> (+<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/rules/no-unused-vars.ts	96.68% <80.00%> (+0.02%)	⬆️
packages/typescript-estree/src/convert.ts	98.36% <100.00%> (ø)

[bradzacher]

we really need to fix this - #2573