perf(importAnalysis): skip merging accepted urls

[OnlyWick]

Description

Some modules do not have HMR. If the execution of mergeAcceptedUrls is not skipped, it will cause 2 * imports.length unnecessary loops.

vite/packages/vite/src/node/plugins/importAnalysis.ts

Lines 432 to 437 in f612e0f

	const orderedAcceptedUrls = new Array<Set<UrlPosition> | undefined>(
	imports.length,
	)
	const orderedAcceptedExports = new Array<Set<string> | undefined>(
	imports.length,
	)