Reduce size of parser-typescript.js

[fisker]

Description

Separated from #13381, I think better target "main" branch, so the package size can be smaller if we still want publish v2.

Size Change: -4.28 MB (-27%) 🎉

Total Size: 11.6 MB

Filename	Size	Change
./dist/esm/parser-typescript.mjs	1.44 MB	-2.14 MB (-60%)	🏆
./dist/parser-typescript.js	1.44 MB	-2.14 MB (-60%)	🏆

ℹ️ View Unchanged

Filename	Size
./dist/bin-prettier.js	1.98 kB
./dist/cli.js	501 kB
./dist/doc.js	69.8 kB
./dist/esm	4.1 kB
./dist/esm/parser-angular.mjs	58.8 kB
./dist/esm/parser-babel.mjs	317 kB
./dist/esm/parser-espree.mjs	154 kB
./dist/esm/parser-flow.mjs	1.05 MB
./dist/esm/parser-glimmer.mjs	193 kB
./dist/esm/parser-graphql.mjs	42.8 kB
./dist/esm/parser-html.mjs	161 kB
./dist/esm/parser-markdown.mjs	169 kB
./dist/esm/parser-meriyah.mjs	161 kB
./dist/esm/parser-postcss.mjs	157 kB
./dist/esm/parser-yaml.mjs	129 kB
./dist/esm/standalone.mjs	444 kB
./dist/index.js	1.42 MB
./dist/LICENSE	296 kB
./dist/package.json	616 B
./dist/parser-angular.js	59.2 kB
./dist/parser-babel.js	317 kB
./dist/parser-espree.js	154 kB
./dist/parser-flow.js	1.05 MB
./dist/parser-glimmer.js	193 kB
./dist/parser-graphql.js	43.2 kB
./dist/parser-html.js	162 kB
./dist/parser-markdown.js	170 kB
./dist/parser-meriyah.js	162 kB
./dist/parser-postcss.js	157 kB
./dist/parser-yaml.js	130 kB
./dist/README.md	3.96 kB
./dist/standalone.js	444 kB
./dist/third-party.js	303 kB

Checklist

• I’ve added tests to confirm my change works.
• (If changing the API or CLI) I’ve documented the changes I’ve made (in the docs/ directory).
• (If the change is user-facing) I’ve added my changes to changelog_unreleased/*/XXXX.md file following changelog_unreleased/TEMPLATE.md.
• I’ve read the contributing guidelines.

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[sosukesuzuki]

Great Job!