Date.UTC() doesn't interpret two-digit years correctly

[kpreisser]

According to the ES5.1 and ES2015 spec, Date.UTC(year, month, ...) should add 1900 to year when 0 ≤ year ≤ 99, but Jurassic (tested with commit a22ef7c) currently interprets it as full year (whereas for the new Date(...) constructor, the behavior is correct).

Expected behavior:

console.log(Date.UTC(70, 0)); // Should print "0"

Actual behavior:

console.log(Date.UTC(70, 0)); // Prints "-59958144000000"

Thanks!

[paulbartrum]

Thanks for the bug report, I've done a fix :-)