var net/http.http2testHookOnPanicMu

4 uses

	net/http (current package)
		h2_bundle.go#L4034: 	http2testHookOnPanicMu     *sync.Mutex // nil except in tests
		h2_bundle.go#L4860: 	if http2testHookOnPanicMu != nil {
		h2_bundle.go#L4861: 		http2testHookOnPanicMu.Lock()
		h2_bundle.go#L4862: 		defer http2testHookOnPanicMu.Unlock()