[perl #113478] [BUG] pre-compile of module that uses non-precompiled module causes 'No STable' error (maybe other symptom)

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# New Ticket Created by  Ron Schmidt 
# Please include the string:  [perl #113478]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=113478 >


The attached Grumble.pm depends on Mumble.pm and neither does much.  If 
I pre-compile Grumble but not Mumble and have Grumble.pir and Mumble.pm 
on my perl6 library path I get the 'No Stable' error for

> perl6 -e 'use Grumble;'

If I now pre-compile Mumble.pm and have both Grumble.pir and Mumble.pir 
on my perl6 library path I still get the error whether Mumble.pm is on 
the path or not.  If I now pre-compile Grumble.pir AGAIN the error goes 
away when I 'use Grumble;'.

This seems to mean that pre-compiling modules in the wrong order of 
dependency can cause errors.

I then pulled down the modules for URI and pre-compiled all modules 
into blib/lib so that all modules were pre-compiled after any module on 
which they depended.  I could now point PERL6LIB at my blib/lib with no 
'.pm' files for any of the URI modules and the main URI test, 't/01.t' 
ran successfully and 3 times as fast as when PERL6LIB pointed at the 
'lib/' directory with '.pm' URI module files.

This seems to imply that this may be the non-deterministic 
pre-compilation bug causing problems for Rakudo Star.

Since the attached files are quite short I include them below for 
convenience.

** File Mumble.pm
class Mumble {
}

** File Grumble.pm
use Mumble;

class Grumble {
     has $.gripe;
     method exhale { say $.gripe }
}

**File nondet.sh
#!/bin/sh

export PERL6LIB=.

rm *.pir
perl6 --target=pir --output=Grumble.pir Grumble.pm
echo 'expect error 1'
perl6 -e 'use Grumble; say<ok>'

echo 'expect error 2'
perl6 --target=pir --output=Mumble.pir Mumble.pm
perl6 -e 'use Grumble; say<ok>'

echo 'expect error 3'
mv Mumble.pm Mumble_sav.pm
perl6 -e 'use Grumble; say<ok>'
mv Mumble_sav.pm Mumble.pm

echo 'expect OK'
perl6 --target=pir --output=Grumble.pir Grumble.pm
perl6 -e 'use Grumble; say<ok>'


use Mumble;

class Grumble {
    has $.gripe;
    method exhale { say $.gripe }
}

class Mumble { 
}

#!/bin/sh

export PERL6LIB=.
rm *.pir
perl6 --target=pir --output=Grumble.pir Grumble.pm
echo 'expect error 1'
perl6 -e 'use Grumble; say <ok>'

echo 'expect error 2'
perl6 --target=pir --output=Mumble.pir Mumble.pm
perl6 -e 'use Grumble; say <ok>'

echo 'expect error 3'
mv Mumble.pm Mumble_sav.pm
perl6 -e 'use Grumble; say <ok>'
mv Mumble_sav.pm Mumble.pm


echo 'expect OK'
perl6 --target=pir --output=Grumble.pir Grumble.pm
perl6 -e 'use Grumble; say <ok>'