review (XS) for 6528013: C1 CTW failure with -XX:+VerifyOops assert(allocates2(pc), "")

[Tom Rodriguez]

http://cr.openjdk.java.net/~never/6528013

6528013: C1 CTW failure with -XX:+VerifyOops assert(allocates2(pc),"")
Reviewed-by:

Make sure we don't overflow the code buffer when emitting VerifyOops
code.  Tested with failing test from report.