feat(ast): add custom builder methods to AST types

[overlookmotel]

Part of #23043.

As well as the generated AstBuilder methods, we have hand-written convenience methods in ast_builder_impl.rs. Replicate these as methods on AST types themselves, using the new generic AstBuild approach.

Note: This stack is draft for now. I'd like to try migrating oxc_parser to new AstBuilder and check it all works before merging anything.

[overlookmotel]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• feat(ast): add custom builder methods to AST types #23651 👈 (View in Graphite)
• feat(ast): add AST creation methods to AST types #23650
• refactor(ast): add ast_builder Cargo feature #23649
• main

---

How to use the Graphite Merge Queue

Add either label to this PR to merge it via the merge queue:

• 0-merge - adds this PR to the back of the merge queue
• hotfix - for urgent changes, fast-track this PR to the front of the merge queue

You must have a Graphite account in order to use the merge queue. Sign up using this link.

An organization admin has enabled the Graphite Merge Queue in this repository.

Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

This stack of pull requests is managed by Graphite. Learn more about stacking.

[codspeed-hq]

Merging this PR will not alter performance

✅ 62 untouched benchmarks
⏩ 9 skipped benchmarks¹

---

_{Comparing om/06-18-feat_ast_add_custom_builder_methods_to_ast_types (9966f70) with om/06-06-feat_ast_add_ast_creation_methods_to_ast_types (6143bb3)}

Footnotes

1. 9 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩