RFR (S): 8012260: ciReplay: Include PID into the name of replay data file

[Vladimir Ivanov]

http://cr.openjdk.java.net/~vlivanov/8012260/webrev.00
43 lines changed: 16 ins; 21 del; 6 mod;

Changed naming scheme for compilation replay data files from 
'replay.txt' to 'replay_pid%p.log', where %p is substituted w/ pid. It 
allows to easily correspond replay file with hs_err file and makes 
overwriting of existing files very unlikely.

Also, converted ReplayDataFile & DumpReplayDataOnError flags from 
develop to diagnostic, since they are useful in product binaries. Did 
some small cleanups.

One question still bothers me. There's a memory allocation in 
VMError::report_and_die() I don't know how to avoid:
+         fileStream* replay_data_stream = new (ResourceObj::C_HEAP, 
mtCompiler) fileStream(replay_data_file);

It's not new, I just moved it up from auxiliary method. Any ideas how to 
make VMError::report_and_die() allocation-free again? :-)

Best regards,
Vladimir Ivanov