feat(ast): add AST creation methods to AST types

[overlookmotel]

Part of #23043.

Codegen AST builder methods on AST types, matching the methods which are generated on current AstBuidler type.

Add a single new AstBuilder type which is the simplest possible - just creates all nodes with dummy NodeIds - same as current builder does. But this PR includes the traits to add other AstBuild implementations later e.g. a builder for transformer which generates unique NodeId for each AST node.

Design is much the same as outlined in #23043 but:

• Extra trait to reduce trait bounds in generated methods (so reducing code size and compile time).
• Different naming for enum methods - Expression::new_null_literal not Expression::null_literal. This naming is more verbose, but clearer, and avoids clashing with existing methods e.g. ModuleExportName::identifier_name.

Note: All these methods are inlined (they need to be, to make AST nodes be constructed in arena directly, not built on stack and copied to arena). So the traits should not have any affect on binary size.

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

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[codspeed-hq]

Merging this PR will not alter performance

✅ 62 untouched benchmarks
⏩ 9 skipped benchmarks¹

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_{Comparing om/06-06-feat_ast_add_ast_creation_methods_to_ast_types (6143bb3) with om/06-06-refactor_ast_add_ast_builder_cargo_feature (0f7f1c2)}

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. ↩