src/v8/test/mjsunit/regress/regress-931.js

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// See http://code.google.com/p/v8/issues/detail?id=931.

var sequence = '';

var o = { f: function (x, y) { return x + y; },
          2: function (x, y) { return x - y} };

function first() { sequence += "1"; return o; }
function second() { sequence += "2"; return "f"; }
function third() { sequence += "3"; return 3; }
function fourth() { sequence += "4"; return 4; }

var result = (first()[second()](third(), fourth()))
assertEquals(7, result);
assertEquals("1234", sequence);

function second_prime() { sequence += "2'"; return 2; }

var result = (first()[second_prime()](third(), fourth()))
assertEquals(-1, result);
assertEquals("123412'34", sequence);