setImmediate, setTimeout, and setInterval were called in an inefficient
way, especially in the presence of arguments. This optimization
improves their performance, with special cases for up to 4 arguments.
Performance of setImmediate increases with 35%, setInterval with 60%,
setTimeout with 70%.
PR-URL: https://github.com/iojs/io.js/pull/406
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Christian Tellnes <christian@tellnes.com>
Ruben Verborgh
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