feat: support mixins, extensions and enums for prefer-match-file-name

[dkrutskikh]

…-name` rule.

What is the purpose of this pull request? (put an "X" next to an item)

[ ] Documentation update
[ ] Bug fix
[ ] New rule
[ ] Changes an existing rule
[ ] Add autofixing to a rule
[ ] Add a CLI option
[ ] Add something to the core
[ ] Other, please explain:

What changes did you make? (Give an overview)

Is there anything you'd like reviewers to focus on?

[codecov]

Codecov Report

Merging #573 (ba9de3d) into master (490e032) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #573      +/-   ##
==========================================
+ Coverage   85.71%   85.76%   +0.05%     
==========================================
  Files         226      227       +1     
  Lines        4689     4708      +19     
==========================================
+ Hits         4019     4038      +19     
  Misses        670      670              

Impacted Files	Coverage Δ
.../src/analyzers/lint_analyzer/rules/node_utils.dart	100.00% <100.00%> (ø)
...les_list/avoid-unnecessary-type-casts/visitor.dart	100.00% <100.00%> (ø)
...ist/avoid_unnecessary_type_assertions/visitor.dart	100.00% <100.00%> (ø)
...r_match_file_name/prefer_match_file_name_rule.dart	100.00% <100.00%> (ø)
...les/rules_list/prefer_match_file_name/visitor.dart	100.00% <100.00%> (ø)

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