* CONFIG_POLL_NONE (because the user-visible consequence is that polling is no longer supported; was CONFIG_PROTECTION_NONE).
* DISABLE_LOCKS (was THREAD_SINGLE).
* DISABLE_SHIELD (was THREAD_SINGLE && PROTECTION_NONE)
* DISABLE_REMEMBERED_SET (was PROTECTION_NONE)
When the shield is disabled, ArenaLeave asserts that there are no busy traces, and ArenaPoll is a no-op.
By having functions implemented using the corresponding macro, we can avoid duplicated code, and avoid testing DISABLE_SHIELD in global.c.
Remove all remaining references to MPS_PROD_EPCORE.
Copied from Perforce
Change: 185176
ServerID: perforce.ravenbrook.com
LII3EG Linux on i386 with EGCS
LIPPGC Linux on POWER with GCC
S7PPMW Mac System 7 on PowerPC with Metrowerks Codewarrior
SOS8CX Solaris on SPARC 8 with cxref
SOS8GC Solaris on SPARC 8 with GCC
SOS8GP Solaris on SPARC 8 with GCC and gprof
SOS9SC Solaris on SPARC 9 with SunPro C
XCPPGC Mac OS X on PowerPC with GCC
Copied from Perforce
Change: 178908
ServerID: perforce.ravenbrook.com
