review (XS) for 7018506: CTW swallowing OOMs after symbol changes

[Tom Rodriguez]

http://cr.openjdk.java.net/~never/7018506

7018506: CTW swallowing OOMs after symbol changes
Reviewed-by:

Previously the symbol creation could throw an OOM for perm but now it
can't and the next two exception points just swallowed exception so it
keeps on going.  The fix is to always allow OOMs to be propagated.
Tested with CTW.