AIOOBE in ThreadContext#postYield

[nirvdrum]

Since the fix from @subbuss for #1980 went in, I'm now getting getting an AIOOBE that I wasn't before. I'm not sure what the cause is, but it appears when rspec has completed running all the specs in one file and then begins its cleanup.

ThreadContext.java:288:in `popScope': java.lang.ArrayIndexOutOfBoundsException: -7
    from ThreadContext.java:990:in `postYield'
    from InterpretedIRBlockBody.java:54:in `commonYieldPath'
    from IRBlockBody.java:66:in `call'
    from Block.java:106:in `call'
    from RubyProc.java:294:in `call'
    from RubyProc.java:220:in `call'
    from Ruby.java:3178:in `tearDown'
    from Ruby.java:3162:in `tearDown'
    from Main.java:303:in `internalRun'
    from Main.java:226:in `run'
    from Main.java:199:in `main'

$ ruby -v
jruby 9000.dev-SNAPSHOT (2.1.2p142) 2014-09-17 394befd Java HotSpot(TM) 64-Bit Server VM 25.20-b23 on 1.8.0_20-b26 [linux-amd64]

[headius]

Try running with this patch: https://gist.github.com/headius/cd011ef475376cd919bc

[nirvdrum]

I'm pretty sure this was fixed somewhere along the way. I'll re-open if I find otherwise.