var net/http.http2testHookOnPanicMu

4 uses

	net/http (current package)
		h2_bundle.go#L3795: 	http2testHookOnPanicMu     *sync.Mutex // nil except in tests
		h2_bundle.go#L4518: 	if http2testHookOnPanicMu != nil {
		h2_bundle.go#L4519: 		http2testHookOnPanicMu.Lock()
		h2_bundle.go#L4520: 		defer http2testHookOnPanicMu.Unlock()