Fix mbrtoc32 test from tests/uchar_test.cpp for x86.

Without that fix the test fails with:
"error: comparison between signed and unsigned integer expressions" on x86,
due to the fact that char is signed on x86.

Change-Id: I44462d67c15c7e9b730ad5da52eb9c05e207d34b
Signed-off-by: Alexander Ivchenko <alexander.ivchenko@intel.com>
1 file changed