fix(estree): Use consistent field order in serialization

[leaysgur]

Part of #9705 , follow up #11362

This change will generate the same AST shapes in all locations, regardless of visitor-keys.

[graphite-app]

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[Copilot]

Pull Request Overview

This PR ensures that the field order in ESTree node serialization is consistent for both TypeScript and JavaScript ASTs, supporting fixes for issues #9705 and #11362.

• Reorders fields in TSTypeNameIdentifierReference and TSTypeNameAsMemberExpression in ts.rs to align with the established serialization pattern.
• Adjusts field placement in js.rs, including proper conditional inclusion of TS-specific fields such as decorators for RestElement, FormalParametersRest, ArrowFunctionExpressionBody, and AssignmentTargetPropertyIdentifierInit.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
crates/oxc_ast/src/serialize/ts.rs	Reordered the placement of "computed" and "optional" fields to achieve a consistent serialization order.
crates/oxc_ast/src/serialize/js.rs	Updated field ordering, especially around conditional TS sections (decorators, argument), for consistency in output.

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #11385 will not alter performance

_{Comparing f/estree-field-order (86f95a6) with main (1cd8b9c)}

Summary

✅ 38 untouched benchmarks

[overlookmotel]

Great! Thank you.