plscheme - plscheme: Introduce argument modes (INOUT/OUT) functionality.

Log Message:
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Introduce argument modes (INOUT/OUT) functionality. Therefore, it's now
possible to return record types. Furthermore, you can receive row type
arguments too. Also, domain types are handled too. You can safely
return and receive domain type arguments, even inside records.

Despite these good news, I couldn't find a way to fix "write past chunk"
warnings caused by record returning procedures. [New features will be
ported to 8.1 after figuring out this problem.]

Modified Files:
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plscheme:
plscheme-8.2.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plscheme/plscheme/plscheme-8.2.c.diff?r1=1.2&r2=1.3)