refactor(parser): remove dead code from modifier parsing

[overlookmotel]

Remove ModifierFlags::TYPE_PARAM and impl TryFrom<Token> for Modifier. Both are dead code - not used anywhere.

[overlookmotel]

• perf(parser): defer calculation of Modifier spans #20823 : 2 dependent PRs (#20824 , #20826 )
• perf(parser): remove branch from parse_modifiers #20821
• perf(parser): reduce Kind to ModifierKind conversions in eat_modifiers_before_declaration #20820
• refactor(parser): shorten code handling illegal modifiers #20781
• perf(parser): fast path for no syntax errors when checking modifiers #20748
• perf(parser): remove a lookahead from eat_modifiers_before_declaration #20755
• refactor(parser): nest modifiers types in modules #20754
• refactor(parser): re-order modifiers code #20753
• perf(parser): store Modifiers on stack #20742
• perf(parser): add Modifiers::get method #20741
• refactor(parser): rename ModifierKinds::empty to none #20740
• refactor(parser): rename ModifierFlags to ModifierKinds #20739
• refactor(parser): simplify ModifierFlags #20738
• refactor(parser): import from std at top level #20737
• refactor(parser): remove Modifier::is_static() #20736
• refactor(parser): remove dead code from modifier parsing #20735 👈 (View in Graphite)
• main

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[Copilot]

Pull request overview

This PR removes dead code from the parser’s modifier parsing implementation, simplifying the modifiers module without changing behavior.

Changes:

• Removed ModifierFlags::TYPE_PARAM (no longer referenced).
• Removed impl TryFrom<Token> for Modifier and the corresponding Token import.

[codspeed-hq]

Merging this PR will not alter performance

✅ 53 untouched benchmarks
⏩ 3 skipped benchmarks¹

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_{Comparing om/03-23-refactor_parser_remove_dead_code_from_modifier_parsing (2f5ebf0) with main (b02fe6e)²}

Footnotes

1. 3 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. ↩

2. No successful run was found on main (e8a6c99) during the generation of this report, so b02fe6e was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[camc314]

Merge activity

• Mar 25, 5:13 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Mar 25, 5:13 PM UTC: camc314 added this pull request to the Graphite merge queue.
• Mar 25, 5:17 PM UTC: Merged by the Graphite merge queue.