[OpenJDK 2D-Dev] Please review patch for 7150134

[Clemens Eisserer]

Hi Jim,

> For a complex clip it is not enough to test the two endpoints so I don't
> think this fix will work for a line that spans between two portions of a
> non-rectangular clip over a region that is outside the clip...

This case is handled by the native clip, so it would just be a missed
optimization.
Would you like me to include a check for isRetcangular?

Thanks, Clemens