fix(eslint-plugin): [unbound-method] handling destructuring

[yeonjuan]

Fixes #2198
Fixes #1112

[typescript-eslint]

Thanks for the PR, @yeonjuan!

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 #2228 into master will increase coverage by 0.02%.
The diff coverage is 94.11%.

@@            Coverage Diff             @@
##           master    #2228      +/-   ##
==========================================
+ Coverage   93.39%   93.41%   +0.02%     
==========================================
  Files         174      174              
  Lines        7883     7912      +29     
  Branches     2251     2264      +13     
==========================================
+ Hits         7362     7391      +29     
+ Misses        247      246       -1     
- Partials      274      275       +1     

Flag	Coverage Δ
#unittest	93.41% <94.11%> (+0.02%)	⬆️

Impacted Files	Coverage Δ
packages/eslint-plugin/src/rules/unbound-method.ts	93.82% <94.11%> (+1.51%)	⬆️
packages/eslint-plugin/src/rules/await-thenable.ts	100.00% <0.00%> (ø)
...ckages/eslint-plugin/src/rules/no-throw-literal.ts	96.07% <0.00%> (ø)
...slint-plugin/src/rules/no-unnecessary-condition.ts	97.31% <0.00%> (ø)
...kages/eslint-plugin/src/rules/no-base-to-string.ts	98.46% <0.00%> (+0.15%)	⬆️
packages/eslint-plugin/src/util/types.ts	82.08% <0.00%> (+0.86%)	⬆️

[bradzacher]

on minor nit - otherwise LGTM - thanks for fixing this

[bradzacher]

thanks heaps!

[krailler]

Is this merge published?