[perf_hook][cloudflare] The implementation is updating globalThis.performance

[vicb]

perf_hooks/$cloudflare.ts patches globalThis.performance, see:

unenv/src/runtime/node/perf_hooks/$cloudflare.ts

Lines 37 to 43 in a58d516

	const workerdGlobalPerformance = (globalThis as any)[
	"perf" + "ormance"
	] as typeof nodePerfHooks.performance;
	// reuse unenv's polyfill, but since preserve globalThis.performance identity
	// we use `.bind(unenvPerformance)` here to preserve the `this` for all delegated method calls
	export const performance = Object.assign(workerdGlobalPerformance, {

@IgorMinar I think you told me that we should not patch existing globals here. Is this a special case?

Note that performance is in the inject

unenv/src/presets/cloudflare.ts

Line 72 in a58d516

performance: ["perf_hooks", "performance"],