feat(es/regexp): Transpile unicode property escapes in RegExp constructor calls

[kdy1]

Previously, SWC only transformed unicode property escapes (\p{...} and \P{...}) in regex literals (/\p{ID_Start}/u). This adds support for transforming them in RegExp constructor calls as well.

Closes #11539

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Binary Sizes

File	Size
swc.linux-x64-gnu.node	28M (28578248 bytes)

Commit: 2f3cc89

[codspeed-hq]

Merging this PR will not alter performance

✅ 184 untouched benchmarks

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_{Comparing claude/issue-11539-20260209-0432 (1c6e2bf) with main (b7e87c7)}

[kdy1]

@claude fix clippy

[claude]

Claude finished @kdy1's task in 2m 31s —— View job

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Fixed Clippy Warning

• Run clippy to identify warnings
• Fix clippy issues
• Commit and push

Fixed 1 clippy warning in crates/swc_ecma_transformer/src/regexp.rs:118: replaced manual match with .unwrap_or_default() (clippy::manual_unwrap_or_default).
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[kdy1]

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