f.walk(n.Values, ctxExpr, visit)
		}
	case *ast.TypeSpec:
		if tparams := typeSpecTypeParams(n); tparams != nil {
			f.walk(tparams, ctxParam, visit)
		}
		f.walk(&n.Type, ctxType, visit)

	case *ast.BadDecl:
	case *ast.GenDecl:
		f.walk(n.Specs, ctxSpec, visit)
	case *ast.FuncDecl:
		if n.Recv != nil {
			f.walk(n.Recv, ctxParam, visit)
		}
		f.walk(n.Type, ctxType, visit)
		if n.Body != nil {

pkg go/ast, type AssignStmt struct, Rhs []Expr
pkg go/ast, type AssignStmt struct, Tok token.Token
pkg go/ast, type AssignStmt struct, TokPos token.Pos
pkg go/ast, type BadDecl struct
pkg go/ast, type BadDecl struct, From token.Pos
pkg go/ast, type BadDecl struct, To token.Pos
pkg go/ast, type BadExpr struct
pkg go/ast, type BadExpr struct, From token.Pos
pkg go/ast, type BadExpr struct, To token.Pos