refactor(@angular/build): optimize Vitest in-memory plugin resolveId #31858
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Refactors the
resolveIdhook in theangular:test-in-memory-providerVite plugin to improve clarity, efficiency, and cross-platform consistency. Also optimizes the plugin by introducing a 'loadResultFile' helper. This helper utilizes 'TextDecoder' to decode memory files, avoiding unnecessary buffer copies associated with 'Buffer.from().toString()'. It also removes duplicate file reading logic for source maps.