RFR (S) 8223770: code_size2 still too small in some compressed oops configurations

[Schmelter, Ralf]

Hi,

this is an addition to https://bugs.openjdk.java.net/browse/JDK-8223617. It turns out, that the additionally given space is not always enough to not trigger the assertion. This is caused by some of the stub routines needing more memory (93 bytes overall), when the compressed oops mode used a non-zero disjoint base. To be on the safe side I've added another 200 bytes to the code_size2 constant and ran the hotspot/jtreg/gc/arguments/TestUseCompressedOopsErgo.java jtreg test, which showed the problem consistently before the change.

webrev: http://cr.openjdk.java.net/~rschmelter/webrevs/8223770/webrev.0/ 
bugreport: https://bugs.openjdk.java.net/browse/JDK-8223770

Best regards,
Ralf