func TestCallbackPanic(t *testing.T)         { testCallbackPanic(t) }
func TestCallbackPanicLocked(t *testing.T)   { testCallbackPanicLocked(t) }
func TestCallbackPanicLoop(t *testing.T)     { testCallbackPanicLoop(t) }
func TestCallbackStack(t *testing.T)         { testCallbackStack(t) }
func TestCflags(t *testing.T)                { testCflags(t) }
func TestCheckConst(t *testing.T)            { testCheckConst(t) }

		}
		if lockedOSThread() {
			t.Fatal("locked OS thread on exit from TestCallbackPanic")
		}
	}()
	nestedCall(func() { panic("callback panic") })
	panic("nestedCall returned")
}

func testCallbackPanicLoop(t *testing.T) {
	// Make sure we don't blow out m->g0 stack.
	for i := 0; i < 100000; i++ {
		testCallbackPanic(t)
	}
}

func testCallbackPanicLocked(t *testing.T) {
	runtime.LockOSThread()