l.updateLocked(now)
	l.gcEnabled = enableGC
	l.transitioning = true
	// N.B. finishGCTransition releases the lock.
	//
	// We don't release here to increase the chance that if there's a failure
	// to finish the transition, that we throw on failing to acquire the lock.
}

// finishGCTransition notifies the limiter that the GC transition is complete

	{14, "SIGALRM", "alarm clock"},
	{15, "SIGTERM", "terminated"},
	{16, "SIGUSR1", "user defined signal 1"},
	{17, "SIGUSR2", "user defined signal 2"},
	{18, "SIGCHLD", "child exited"},
	{19, "SIGPWR", "power failure"},
	{20, "SIGWINCH", "window changed"},
	{21, "SIGURG", "urgent I/O condition"},
	{22, "SIGIO", "I/O possible"},
	{23, "SIGSTOP", "stopped (signal)"},
	{24, "SIGTSTP", "stopped"},
	{25, "SIGCONT", "continued"},

	fatal(s)
}

// throw triggers a fatal error that dumps a stack trace and exits.
//
// throw should be used for runtime-internal fatal errors where Go itself,
// rather than user code, may be at fault for the failure.
//
// NOTE: temporarily marked "go:noinline" pending investigation/fix of
// issue #67274, so as to fix longtest builders.
//
// throw should be an internal detail,

		if cls := runtime.GCTestPointerClass(unsafe.Pointer(new)); cls != "stack" {
			t.Fatalf("test bug: new (%#x) should be a stack pointer, not %s", new2, cls)
		}
		// This was a real failure.
		return false
	}
	return true
}

func TestGCTestMoveStackRepeatedly(t *testing.T) {
	// Move the stack repeatedly to make sure we're not doubling
	// it each time.
	for i := 0; i < 100; i++ {

	lineNum  int // current line number.
	env      []string
}

// run runs the generators in the current file.
func (g *Generator) run() (ok bool) {
	// Processing below here calls g.errorf on failure, which does panic(stop).
	// If we encounter an error, we abort the package.
	defer func() {
		e := recover()
		if e != nil {
			ok = false
			if e != stop {
				panic(e)
			}
			base.SetExitStatus(1)

			}
		} else if err := syscall.SetNonblock(fd, true); err == nil {
			f.nonblock = true
			clearNonBlock = true
		} else {
			pollable = false
		}
	}

	// An error here indicates a failure to register
	// with the netpoll system. That can happen for
	// a file descriptor that is not supported by
	// epoll/kqueue; for example, disk files on
	// Linux systems. We assume that any real error

	{26, "SIGVTALRM", "virtual timer expired"},
	{27, "SIGPROF", "profiling timer expired"},
	{28, "SIGWINCH", "window changed"},
	{29, "SIGIO", "I/O possible"},
	{30, "SIGPWR", "power failure"},
	{31, "SIGSYS", "bad system call"},

	// RoundTrip should not attempt to interpret the response. In
	// particular, RoundTrip must return err == nil if it obtained
	// a response, regardless of the response's HTTP status code.
	// A non-nil err should be reserved for failure to obtain a
	// response. Similarly, RoundTrip should not attempt to
	// handle higher-level protocol details such as redirects,
	// authentication, or cookies.
	//
	// RoundTrip should not modify the request, except for

	}
}

// assignableTo reports whether x is assignable to a variable of type T. If the
// result is false and a non-nil cause is provided, it may be set to a more
// detailed explanation of the failure (result != ""). The returned error code
// is only valid if the (first) result is false. The check parameter may be nil
// if assignableTo is invoked through an exported API call, i.e., when all
// methods have been type-checked.

		}
	}
}

func TestErrorContextWithTreeCopy(t *testing.T) {
	tree, err := New("root").Parse("{{if true}}{{end}}", "", "", make(map[string]*Tree), nil)
	if err != nil {
		t.Fatalf("unexpected tree parse failure: %v", err)
	}
	treeCopy := tree.Copy()
	wantLocation, wantContext := tree.ErrorContext(tree.Root.Nodes[0])
	gotLocation, gotContext := treeCopy.ErrorContext(treeCopy.Root.Nodes[0])
	if wantLocation != gotLocation {