fix(eslint-plugin): [no-implied-eval] handle the `Function` type

[soobing]

Fixes #2358
In case of using Function type the function checking is function type( named isFunctionType ) should return true.

[typescript-eslint]

Thanks for the PR, @soobing!

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 #2435 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2435      +/-   ##
==========================================
- Coverage   92.81%   92.80%   -0.02%     
==========================================
  Files         290      290              
  Lines        9453     9459       +6     
  Branches     2647     2650       +3     
==========================================
+ Hits         8774     8778       +4     
  Misses        322      322              
- Partials      357      359       +2     

Flag	Coverage Δ
#unittest	92.80% <ø> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
...ackages/eslint-plugin/src/rules/no-implied-eval.ts	93.75% <ø> (-2.81%)	⬇️

[soobing]

if you have any good idea to check symbol.flags === 33554497 please let me know. ✨

[bradzacher]

It might be better instead to just do something similar to what we've got for checking if the symbol is declared locally or not:

typescript-eslint/packages/eslint-plugin/src/rules/no-implied-eval.ts

Lines 128 to 135 in 2ada5af

	const declarations = symbol.getDeclarations() ?? [];
	for (const declaration of declarations) {
	const sourceFile = declaration.getSourceFile();
	if (program.isSourceFileDefaultLibrary(sourceFile)) {
	context.report({ node, messageId: 'noFunctionConstructor' });
	return;
	}
	}

[soobing]

@bradzacher Thank you for review. I updated to check if the symbol is declared locally or not :)

[bradzacher]

LGTM - thanks for your contribution!