Do not allow OSR jump while debugging is active.

Rationale:
This prevents dangerous transitions between interpreter
and osr compiled code while e.g. single stepping through
a method that is becoming hot.

BUG=28672961

(cherry picked from commit 29bdaeef925f35eed68f3e52d04416daa0a62317)

Change-Id: I7647710dbe794a1b3320a9666d3e3be85fc40ccd
1 file changed