mozilla/kuma — pull request #2362 by openjck (2014-05-02 22:27:33+00:00)
Title: Improve implementation of bidi-value()

Before these changes the following input:

p {
bidi-value(float, left, right);
}

Would compile to the following output.

p {
float: left;
}

.html-rtl p {
float: left;
float: right;
}

After these changes, the unnecessary "float: left" in the RTL version is
not included. This saves about 250 bytes -- it's something!