* src/mcs51/gen.c (leftRightUseAcc): use macro IS_OP_ACCUSE

* src/mcs51/gen.c (leftRightUseAcc): use macro IS_OP_ACCUSE
* src/SDCCast.c (decorateType): optimize bit=cond?1:0, RFE 1738430
* support/regression/tests/bug-223113.c,
* support/regression/tests/bug-426632.c,
* support/regression/tests/bug-468811.c,
* support/regression/tests/bug-477835.c,
* support/regression/tests/bug-478094.c,
* support/regression/tests/bug-499644.c,
* support/regression/tests/bug-524209.c,
* support/regression/tests/bug-524211.c,
* support/regression/tests/packcast.c,
* support/regression/tests/structidx.c: added empty tests
* support/regression/tests/bug-607243.c: enabled test

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4930 4a8a32a2-be11-0410-ad9d-d568d2c75423