e822517f38
Test case:
function f() {
var a = [1,2,3,4,5,6,7,8,9,10];
var d = new Date();
var r = [];
for (var i=0; i < 1000; i++) {
r = r.concat(a);
}
print((new Date()) - d);
}
f();
git-svn-id: svn://10.0.0.236/trunk@238044 18797224-902f-48f8-a5cc-f745e15eee43