SAL_UNUSED_PARAMETER (expanding to __attribute__ ((unused)) for GCC)
is used to annotate legitimately unused parameters, so that static
analysis tools can tell legitimately unused parameters from truly
unnecessary ones. To that end, some patches for external modules
are also added, that are only applied when compiling with GCC and
add necessary __attribute__ ((unused)) in headers.
* New SAL_INFO..., SAL_WARN... macros.
* New SAL_STREAM supersedes OSL_FORMAT.
* oustringostreaminserter.hxx moved from unotest to rtl (and always UTF-8 now).
* TODO to enable GCC __attribute__((format)) in sal/log.h (requires call-site
cleanup).
* Further functionality in tools/debug.hxx (DBG_MEMTEST, DBG_CTOR, etc.) not yet
addressed.
* Some replacements tools String -> rtl::OUString.
