case *ir.SelectorExpr:
				if ll.Op() == ir.ODOT {
					l = ll.X
					continue
				}
			}
			break
		}

		var name *ir.Name
		switch l.Op() {
		default:
			base.Fatalf("unexpected lvalue %v", l.Op())
		case ir.ONAME:
			name = l.(*ir.Name)
		case ir.OINDEX, ir.OINDEXMAP:
			l := l.(*ir.IndexExpr)
			save(&l.X)
			save(&l.Index)
		case ir.ODEREF:
			l := l.(*ir.StarExpr)

				// package of the generic function.
				if !(ir.CurFunc != nil && strings.Contains(ir.CurFunc.Nname.Sym().Name, "[")) {
					if s != nil && !types.IsExported(s.Name) && s.Pkg != types.LocalPkg {
						base.Errorf("implicit assignment of unexported field '%s' in %v literal", s.Name, t)
					}
				}
				// No pushtype allowed here. Must name fields for that.
				n1 = AssignConv(n1, f.Type, "field value")

			ecsj := EncodeCallSiteKey(sl[j])
			return ecsi < ecsj
		})

		mkname := func(fn *ir.Func) string {
			var n string
			if fn == nil || fn.Nname == nil {
				return "<nil>"
			}
			if fn.Sym().Pkg == types.LocalPkg {
				n = "·" + fn.Sym().Name
			} else {
				n = ir.PkgFuncName(fn)
			}
			// don't try to print super-long names
			if len(n) <= 64 {
				return n
			}

// (Call typecheck.Func instead.)
func tcFunc(n *ir.Func) {
	if base.EnableTrace && base.Flag.LowerT {
		defer tracePrint("tcFunc", n)(nil)
	}

	if name := n.Nname; name.Typecheck() == 0 {
		base.AssertfAt(name.Type() != nil, n.Pos(), "missing type: %v", name)
		name.SetTypecheck(1)
	}
}

// tcCall typechecks an OCALL node.
func tcCall(n *ir.CallExpr, top int) ir.Node {

	if ir.IsFuncPCIntrinsic(n) {
		// For internal/abi.FuncPCABIxxx(fn), if fn is a defined function, rewrite
		// it to the address of the function of the ABI fn is defined.
		name := n.Fun.(*ir.Name).Sym().Name
		arg := n.Args[0]
		var wantABI obj.ABI
		switch name {
		case "FuncPCABI0":
			wantABI = obj.ABI0
		case "FuncPCABIInternal":
			wantABI = obj.ABIInternal
		}
		if n.Type() != types.Types[types.TUINTPTR] {

		_, len := backingArrayPtrLen(cheapExpr(conv.X, init))
		return len
	}
	if isChanLenCap(n) {
		name := "chanlen"
		if n.Op() == ir.OCAP {
			name = "chancap"
		}
		// cannot use chanfn - closechan takes any, not chan any,
		// because it accepts both send-only and recv-only channels.
		fn := typecheck.LookupRuntime(name, n.X.Type())
		return mkcall1(fn, n.Type(), init, n.X)
	}

	n.X = walkExpr(n.X, init)

	s := string(n)
	return ComponentName(strings.ToUpper(s[0:1]) + s[1:])
}

// UserFacingComponentName returns the name of the given component that should be displayed to the user in high
// level CLIs (like progress log).
func UserFacingComponentName(name ComponentName) string {
	ret, ok := userFacingComponentNames[name]
	if !ok {
		return "Unknown"
	}
	return ret

				n = nn.X
				continue
			}
		}
		break
	}
	if n.Op() != ir.ONAME {
		return false
	}
	return s.canSSAName(n.(*ir.Name)) && ssa.CanSSA(n.Type())
}

func (s *state) canSSAName(name *ir.Name) bool {
	if name.Addrtaken() || !name.OnStack() {
		return false
	}
	switch name.Class {
	case ir.PPARAMOUT:
		if s.hasdefer {

	}
}

func TestFileTransport(t *testing.T) {
	check := checker(t)

	dname := t.TempDir()
	fname := filepath.Join(dname, "foo.txt")
	err := os.WriteFile(fname, []byte("Bar"), 0644)
	check("WriteFile", err)
	defer os.Remove(fname)

	tr := &Transport{}
	tr.RegisterProtocol("file", NewFileTransport(Dir(dname)))
	c := &Client{Transport: tr}

	fooURLs := []string{"file:///foo.txt", "file://../foo.txt"}

		name = name[:maxNameLen-len(bad)] + bad
	}
	return name
}

// DecodeStack expands the (compressed) stack encoded in the counter name.
func DecodeStack(ename string) string {
	if !strings.Contains(ename, "\n") {
		return ename // not a stack counter
	}
	lines := strings.Split(ename, "\n")
	var lastPath string // empty or ends with .
	for i, line := range lines {
		path, rest := cutLastDot(line)
		if len(path) == 0 {