enhancement(checks): add check for changing error reporting configuration

[faisalahammad]

Summary

Adds a new static check to identify cases where plugin code changes PHP error reporting or WordPress debug configuration at runtime. This prevents plugins from disrupting global debug configurations or hiding critical errors in production environments.

Fixes #1272

Changes

phpcs-sniffs/PluginCheck/Sniffs/CodeAnalysis/ErrorReportingSniff.php

Before:
(New file)

After:

final class ErrorReportingSniff extends Sniff {
	public function register() {
		return array( T_STRING );
	}
	public function process_token( $stackPtr ) {
		// ...
	}
}

Why: Employs precise AST token analysis to safely detect error_reporting(), ini_set(), ini_alter(), and define() modifying runtime debugging configuration while completely avoiding false positives from string literals or comments.

includes/Checker/Checks/General/Error_Reporting_Check.php

Before:
(New file)

After:

class Error_Reporting_Check extends Abstract_PHP_CodeSniffer_Check {
	protected function get_args( Check_Result $result ) {
		return array(
			'extensions' => 'php',
			'standard'   => 'PluginCheck',
			'sniffs'     => 'PluginCheck.CodeAnalysis.ErrorReporting',
		);
	}
}

Why: Exposes the new CodeAnalysis sniff as a high-priority notice/warning under the General and Plugin Repo categories.

includes/Checker/Default_Check_Repository.php

Before:

				'i18n_usage'                 => new Checks\General\I18n_Usage_Check(),
				'enqueued_scripts_size'      => new Checks\Performance\Enqueued_Scripts_Size_Check(),

After:

				'i18n_usage'                 => new Checks\General\I18n_Usage_Check(),
				'error_reporting'            => new Checks\General\Error_Reporting_Check(),
				'enqueued_scripts_size'      => new Checks\Performance\Enqueued_Scripts_Size_Check(),

Why: Registers the new check within the default check repository.

Testing

Test 1: Run Unit Tests

1. Run npm run test-php -- --filter Error_Reporting_Check_Tests

Result: Works as expected (2 tests, 7 assertions passed)

[github-actions]

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Co-authored-by: faisalahammad <faisalahammad@git.wordpress.org>
Co-authored-by: davidperezgar <davidperez@git.wordpress.org>

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[davidperezgar]

Wow Faisal, thanks for the quick response. I'll check the PR.