uninorm tests: Free allocated memory. * tests/uninorm/test-u32-normalize-big.h (struct normalization_test_file): Remove 'const' from allocated member. (free_normalization_test_file): New declaration. * tests/uninorm/test-u32-normalize-big.c (test_other): Free allocated memory. (free_normalization_test_file): New function. * tests/uninorm/test-u32-nfc-big.c (main): Free allocated 'struct normalization_test_file' contents. * tests/uninorm/test-u32-nfd-big.c (main): Likewise. * tests/uninorm/test-u32-nfkc-big.c (main): Likewise. * tests/uninorm/test-u32-nfkd-big.c (main): Likewise.

# Suppress a valgrind message about use of uninitialized memory in memchr().
# POSIX states that when the character is found, memchr must not read extra
# bytes in an overestimated length (for example, where memchr is used to
# implement strnlen).  However, we use a safe word read to provide a speedup.
{
    memchr-value4
    Memcheck:Value4
    fun:rpl_memchr
}
{
    memchr-value8
    Memcheck:Value8
    fun:rpl_memchr
}