[15] RFR(S): 8246453: TestClone crashes with "all collected exceptions must come from the same place"

[Tobias Hartmann]

Hi,

please review the following patch:
https://bugs.openjdk.java.net/browse/JDK-8246453
http://cr.openjdk.java.net/~thartmann/8246453/webrev.00/

Similar to old JDK-8033626 [1], we assert when trying to merge two JVMStates with different
reexecute settings. This only happens with -XX:+StressReflectiveCode because in that case we don't
fold the array guard and emit code to allocate the array to be cloned into. The fix is to simply set
deoptimize_on_exception for that allocation as well (we already set it for the non-array case [2]).

Thanks,
Tobias

[1] https://bugs.openjdk.java.net/browse/JDK-8033626
http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/00c8a1255912
[2] http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/00c8a1255912#l3.7