* src/ds390/main.c,

* src/ds390/main.c,
* src/mcs51/main.c: fixed sort order of mnemonics (thanks to Maarten
Brock for spotting this)
* src/ds390/gen.c (genEndFunction),
* src/mcs51/gen.c (genEndFunction): always save psw if function is an
interrupt handler and critical. Disable push/pop optimizations when
peephole optimizations disabled.

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3328 4a8a32a2-be11-0410-ad9d-d568d2c75423