`package p; type _ struct{ ( /* ERROR "cannot parenthesize embedded type" */ int) }`,
	`package p; type _ struct{ ( /* ERROR "cannot parenthesize embedded type" */ []byte) }`,
	`package p; type _ struct{ *( /* ERROR "cannot parenthesize embedded type" */ int) }`,
	`package p; type _ struct{ *( /* ERROR "cannot parenthesize embedded type" */ []byte) }`,

	// go.dev/issue/8656

package or module. Subsequent lines give a path through the import
graph, one package per line. If the package or module is not
referenced from the main module, the stanza will display a single
parenthesized note indicating that fact.

For example:

	$ go mod why golang.org/x/text/language golang.org/x/text/encoding
	# golang.org/x/text/language
	rsc.io/quote
	rsc.io/sampler
	golang.org/x/text/language

		*syntax.AssignStmt, *syntax.CallStmt:
		// no chance

	case *syntax.LabeledStmt:
		return check.isTerminating(s.Stmt, s.Label.Value)

	case *syntax.ExprStmt:
		// calling the predeclared (possibly parenthesized) panic() function is terminating
		if call, ok := syntax.Unparen(s.X).(*syntax.CallExpr); ok && check.isPanic[call] {
			return true
		}

	case *syntax.ReturnStmt:
		return true

	case *syntax.BranchStmt:

		*ast.RangeStmt:
		// no chance

	case *ast.LabeledStmt:
		return check.isTerminating(s.Stmt, s.Label.Name)

	case *ast.ExprStmt:
		// calling the predeclared (possibly parenthesized) panic() function is terminating
		if call, ok := ast.Unparen(s.X).(*ast.CallExpr); ok && check.isPanic[call] {
			return true
		}

	case *ast.ReturnStmt:
		return true

	case *ast.BranchStmt:

			fun = call.Fun
			n++
		}
	}
	if n != 1 {
		t.Errorf("%s: got %d CallExprs; want 1", src0, n)
		return
	}

	// check recorded types for fun and descendents (may be parenthesized)
	for {
		// the recorded type for the built-in must match the wanted signature
		typ := types[fun].Type
		if typ == nil {
			t.Errorf("%s: no type recorded for %s", src0, ExprString(fun))
			return
		}

		} else {
			token = 'A'
		}
	}
}

func Expect(c int) {
	if token != c {
		print("parse error: expected ", c, "\n")
		panic("parse")
	}
	NextToken()
}

// Parse a non-parenthesized list up to a closing paren or EOF
func ParseList() *Slist {
	var slist, retval *Slist

	slist = new(Slist)
	slist.list.car = nil
	slist.list.cdr = nil
	slist.isatom = false
	slist.isstring = false

		Incomplete bool      // true if (source) expressions are missing in the Elts list
	}

	// A ParenExpr node represents a parenthesized expression.
	ParenExpr struct {
		Lparen token.Pos // position of "("
		X      Expr      // parenthesized expression
		Rparen token.Pos // position of ")"
	}

	// A SelectorExpr node represents an expression followed by a selector.
	SelectorExpr struct {

			fun = call.Fun
			n++
		}
	}
	if n != 1 {
		t.Errorf("%s: got %d CallExprs; want 1", src0, n)
		return
	}

	// check recorded types for fun and descendents (may be parenthesized)
	for {
		// the recorded type for the built-in must match the wanted signature
		typ := types[fun].Type
		if typ == nil {
			t.Errorf("%s: no type recorded for %s", src0, ExprString(fun))
			return
		}

	{"field on interface", "{{.foo}}", "<no value>", nil, true},
	{"field on parenthesized interface", "{{(.).foo}}", "<no value>", nil, true},

	// Issue 31810: Parenthesized first element of pipeline with arguments.
	// See also TestIssue31810.
	{"unparenthesized non-function", "{{1 2}}", "", nil, false},
	{"parenthesized non-function", "{{(1) 2}}", "", nil, false},
	{"parenthesized non-function with no args", "{{(1)}}", "1", nil, true}, // This is fine.

	{"field on parenthesized interface", "{{(.).foo}}", "", nil, true}, // NOTE: <no value> in text/template

	// Issue 31810: Parenthesized first element of pipeline with arguments.
	// See also TestIssue31810.
	{"unparenthesized non-function", "{{1 2}}", "", nil, false},
	{"parenthesized non-function", "{{(1) 2}}", "", nil, false},