warnings appearing during 'make' invocation of pmc2c.pl

[James E Keenan]

I have started to observe some warnings appearing early in the 'make' 
process:

/usr/local/bin/perl tools/build/h2inc.pl include/parrot/enums.h 
lib/Parrot/Pmc2c/PCCMETHOD_BITS.pm
/usr/local/bin/perl tools/build/vtable_h.pl
/usr/local/bin/perl tools/build/pmc2c.pl --vtable
/usr/local/bin/perl tools/build/pmc2c.pl --dump  src/pmc/default.pmc
  at /home/jimk/work/parrot/tools/build/../../lib/Parrot/Pmc2c/Dumper.pm 
line 54
 
Parrot::Pmc2c::Dumper::dump_pmc('Parrot::Pmc2c::Pmc2cMain=HASH(0x83f52c0)') 
called at tools/build/pmc2c.pl line 51
  at /home/jimk/work/parrot/tools/build/../../lib/Parrot/Pmc2c/Dumper.pm 
line 74
 
Parrot::Pmc2c::Dumper::dump_pmc('Parrot::Pmc2c::Pmc2cMain=HASH(0x83f52c0)') 
called at tools/build/pmc2c.pl line 51
/usr/local/bin/perl tools/build/pmc2c.pl --dump 
src/pmc/fixedintegerarray.pmc
/usr/local/bin/perl tools/build/pmc2c.pl --c  src/pmc/fixedintegerarray.pmc

According to my build logs, this began sometime between r45132 (March 
23) and r45159 (March 24).  I don't have any evidence yet that this 
affects the parrot executable, and I have not yet had time to diagnose 
the problem.war