Fixes narrowing conversion build errors in test_common
Removing disable of narrowing errors in main CMakeLists.txt
and moving it down to specific test_conformance suite's
CMakeLists.txt where there are many more build errors revealed
from this fix.
Fixes a few simple issues under test_conformance in the process.
Contributes #787
Signed-off-by: Ellen Norris-Thompson <ellen.norris-thompson@arm.com>
---------
Signed-off-by: Ellen Norris-Thompson <ellen.norris-thompson@arm.com>
Remove unused variables throughout the code base and enable the
`-Wunused-variable` warning flag globally to prevent new unused
variable issues being introduced in the future.
This is mostly a non-functional change, with one exception:
- In `test_conformance/api/test_kernel_arg_info.cpp`, an error check
of the clGetDeviceInfo return value was added.
Signed-off-by: Sven van Haastregt <sven.vanhaastregt@arm.com>
