fmt.Println() // empty line between top-level objects for readability
		}
		check.trace(obj.Pos(), "-- checking %s (%s, objPath = %s)", obj, obj.color(), pathString(check.objPath))
		check.indent++
		defer func() {
			check.indent--
			check.trace(obj.Pos(), "=> %s (%s)", obj, obj.color())
		}()
	}

	// Checking the declaration of obj means inferring its type
	// (and possibly its value, for constants).

        def cycle = new Tree(value: "cycle", left: new Tree(value: "left"))
        cycle.right = cycle
        task.nested = new Tree(value: "first", left: new Tree(value: "left"), right: new Tree(value: "deeper", left: cycle, right: new Tree(value: "no-cycle")))

        when:
        visitProperties(task)

        then:
        _ * visitor.visitNested() >> true

		{src: "tsan15.go", needsRuntime: true},
	}
	for _, tc := range cases {
		tc := tc
		name := strings.TrimSuffix(tc.src, ".go")
		t.Run(name, func(t *testing.T) {
			t.Parallel()

			dir := newTempDir(t)
			defer dir.RemoveAll(t)

			outPath := dir.Join(name)
			mustRun(t, config.goCmd("build", "-o", outPath, srcPath(tc.src)))

			cmd := hangProneCmd(outPath)
			if tc.needsRuntime {
				config.skipIfRuntimeIncompatible(t)

	}
	for _, tc := range cases {
		tc := tc
		name := strings.TrimSuffix(tc.goSrc, ".go")
		t.Run(name, func(t *testing.T) {
			t.Parallel()

			dir := newTempDir(t)
			defer dir.RemoveAll(t)

			// build Go code in libfuzzer mode to a c-archive
			outPath := dir.Join(name)
			archivePath := dir.Join(name + ".a")

# Defers

The last wrinkle is handling defer statements. If we have

	for range f {
		defer print("A")
	}

we cannot rewrite that into

	f(func() {
		defer print("A")
	})

because the deferred code will run at the end of the iteration, not
the end of the containing function. To fix that, the runtime provides
a special hook that lets us obtain a defer "token" representing the

	// reusable priority queue
	priq := new(ValHeap)

	// "priority" for a value
	score := f.Cache.allocInt8Slice(f.NumValues())
	defer f.Cache.freeInt8Slice(score)

	// maps mem values to the next live memory value
	nextMem := f.Cache.allocValueSlice(f.NumValues())
	defer f.Cache.freeValueSlice(nextMem)

	// inBlockUses records whether a value is used in the block

	dwarff, err := os.Open(dsym)
	if err != nil {
		return err
	}
	defer dwarff.Close()
	outf, err := os.OpenFile(outexe, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
	if err != nil {
		return err
	}
	defer outf.Close()
	dwarfm, err := macho.NewFile(dwarff)
	if err != nil {
		return err
	}
	defer dwarfm.Close()

	// The string table needs to be the last thing in the file

		t.Skip("Skipping test in short mode")
	}
	testenv.MustHaveGoBuild(t)

	dir, err := os.MkdirTemp("", "testlargebranch")
	if err != nil {
		t.Fatalf("Could not create directory: %v", err)
	}
	defer os.RemoveAll(dir)

	// Generate a very large function.
	buf := bytes.NewBuffer(make([]byte, 0, genBufSize))
	genLargeBranch(buf)

	tmpfile := filepath.Join(dir, "x.s")

            // currently only testing the IDE mode and (2) the test results between different modes should not differ for session
            // invalidation in the first place.
            testPrefix = resultFileSuffix,
        )
    }

    private fun checkSessionValidityBeforeModification(
        sessions: List<SESSION>,

func typecheck(n ir.Node, top int) (res ir.Node) {
	if n == nil {
		return nil
	}

	// only trace if there's work to do
	if base.EnableTrace && base.Flag.LowerT {
		defer tracePrint("typecheck", n)(&res)
	}

	lno := ir.SetPos(n)
	defer func() { base.Pos = lno }()

	// Skip typecheck if already done.
	// But re-typecheck ONAME/OTYPE/OLITERAL/OPACK node in case context has changed.