[clang-tidy] Add support comments in config file for WarningsAsErrors

[fekir]

This issue is related to #64343

I see that, for example

Checks: [
  -*,
  ,-abseil-string-find-str-contains # no abseil, use std::string::contains
]

is supported, but

WarningsAsErrors: [
  -*,
  ,-abseil-string-find-str-contains # no abseil, use std::string::contains
]

does not seem to be supported; I get errors similar to the following

clang-tidy --verify-config
/home/user/.clang-tidy: error: unexpected scalar                                                                                                           -*                                                                                                                                                                        ^
Error parsing /home/user/.clang-tidy: Invalid argument

It would be nice if Checks and WarningsAsErrors would support the same syntax, and in particular being able to put comments between entries, like it is in Checks.

[llvmbot]

@llvm/issue-subscribers-clang-tidy

Author: Federico Kircheis (fekir)

This issue is related to #64343

I see that, for example

Checks: [
  -*,
  ,-abseil-string-find-str-contains # no abseil, use std::string::contains
]

is supported, but

WarningsAsErrors: [
  -*,
  ,-abseil-string-find-str-contains # no abseil, use std::string::contains
]

does not seem to be supported; I get errors similar to the following

clang-tidy --verify-config
/home/user/.clang-tidy: error: unexpected scalar                                                                                                           -*                                                                                                                                                                        ^
Error parsing /home/user/.clang-tidy: Invalid argument

It would be nice if Checks and WarningsAsErrors would support the same syntax, and in particular being able to put comments between entries, like it is in Checks.