return false
	}

	// File is already gofmt-ed, so we know that if there are +build lines,
	// they are in a comment group that starts with a //go:build line followed
	// by a blank line. While we cannot delete comments from an AST and
	// expect consistent output in general, this specific case - deleting only
	// some lines from a comment block - does format correctly.
	fixed := false
	for _, g := range f.Comments {

		ast.Inspect(f, func(n ast.Node) bool {
			if x, ok := n.(*ast.Ident); ok {
				var objects int
				if _, found := uses[x]; found {
					objects |= 1
					delete(uses, x)
				}
				if _, found := defs[x]; found {
					objects |= 2
					delete(defs, x)
				}
				if objects == 0 {
					t.Errorf("%s: unresolved identifier %s", fset.Position(x.Pos()), x.Name)
				} else if objects == 3 {

		m[i] = i
	}
	growflag := true
	for k := range m {
		if growflag {
			// grow the table
			for i := 100; i < 1000; i++ {
				m[i] = i
			}
			// delete all odd keys
			for i := 1; i < 1000; i += 2 {
				delete(m, i)
			}
			growflag = false
		} else {
			if k&1 == 1 {
				t.Error("odd value returned")
			}
		}
	}
}

		15: {method: "DELETE", serverStatus: 301, wantMethod: "GET"},
		16: {method: "DELETE", serverStatus: 302, wantMethod: "GET"},
		17: {method: "DELETE", serverStatus: 303, wantMethod: "GET"},
		18: {method: "DELETE", serverStatus: 307, wantMethod: "DELETE"},
		19: {method: "DELETE", serverStatus: 308, wantMethod: "DELETE"},

		20: {method: "PUT", serverStatus: 301, wantMethod: "GET"},

	}

	colors.Delete("red")
	if v := colors.Get("red"); v != nil {
		t.Errorf("removed red, Get should return nil; got %v", v)
	}
	n = 0
	colors.Do(func(KeyValue) { n++ })
	if n != 1 {
		t.Errorf("removed red, Do should invoke f 1 times; got %v", n)
	}

	colors.Delete("notfound")
	n = 0
	colors.Do(func(KeyValue) { n++ })
	if n != 1 {

		}
		mappedType = go122.EvGoCreate
	case oldtrace.EvGoStart:
		if it.preInit {
			mappedType = go122.EvGoStatus
			mappedArgs = timedEventArgs{ev.Args[0], ^uint64(0), uint64(go122.GoRunning)}
			delete(it.createdPreInit, GoID(ev.Args[0]))
		} else {
			mappedType = go122.EvGoStart
		}
	case oldtrace.EvGoStartLabel:
		it.extra = []Event{{
			ctx: schedCtx{
				G: GoID(ev.G),
				P: ProcID(ev.P),

	{"copy", `var dst []byte; copy(dst, "hello")`, `func([]byte, string) int`},

	{"delete", `var m map[string]bool; delete(m, "foo")`, `func(map[string]bool, string)`},
	{"delete", `type (K string; V int); var m map[K]V; delete(m, "foo")`, `func(map[p.K]p.V, p.K)`},

	{"imag", `_ = imag(1i)`, `invalid type`}, // constant

			explicitArgs = append(explicitArgs, fmt.Sprintf("-test.%s=%v", short, f.Value))

			// This flag has been overridden explicitly, so don't forward its implicit
			// value from GOFLAGS.
			delete(addFromGOFLAGS, short)
			delete(addFromGOFLAGS, "test."+short)
		}

		args = remainingArgs
	}
	if firstUnknownFlag != "" && testC {
		fmt.Fprintf(os.Stderr, "go: unknown flag %s cannot be used with -c\n", firstUnknownFlag)

				block = append(block, tabwriter.Escape)
				block = append(block, line...)
				block = append(block, tabwriter.Escape, '\n')
			}
		}
	}
	block = append(block, '\n')

	// Build sorted list of lines to delete from remainder of output.
	toDelete := append(p.goBuild, p.plusBuild...)
	slices.Sort(toDelete)

	// Collect output after insertion point, with lines deleted, into after.
	var after []byte
	start := insert

		for _, region := range summary.Regions {
			want, ok := wantRegions[region.Name]
			if !ok {
				continue
			}
			checkRegionEvents(t, want.startKind, want.endKind, summary.ID, region)
			delete(wantRegions, region.Name)
		}
	}
	if len(wantRegions) != 0 {
		t.Errorf("failed to find regions: %#v", wantRegions)
	}
}

func TestSummarizeTasksTrace(t *testing.T) {