fix(@angular/build): disable TypeScript removeComments option
#29474
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Disables TypeScript's `removeComments` option to ensure important annotations like `/* @__PURE__ */` and `/* vite-ignore */` are preserved. TypeScript's comment removal can be too aggressive, potentially stripping out critical information needed by bundlers for dead code elimination. Non-essential comments will be handled by the bundler, so removing them in TypeScript isn't necessary and could lead to an increase in the final bundle size. Closes angular#29470
alan-agius4
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action: review
clydin
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Jan 24, 2025
alan-agius4
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action: merge
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The changes were merged into the following branches: main, 19.1.x |
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Disables TypeScript's
removeCommentsoption to ensure important annotations like/* @__PURE__ */and/* vite-ignore */are preserved. TypeScript's comment removal can be too aggressive, potentially stripping out critical information needed by bundlers for dead code elimination. Non-essential comments will be handled by the bundler, so removing them in TypeScript isn't necessary and could lead to an increase in the final bundle size.Closes #29470