* Skip compiler unload/reload tests if compiler is not available
Note that tests that use the compiler helper functions but won't work without a
compiler are in the `subtests_to_skip_with_offline_compiler` list. I didn't do
that here because they tests directly use `clBuildProgram` etc directly,
because they're specifically testing it's behaviour in edge-cases.
* Change type of status variable
* Fail feature macro compare if compiler has more features than runtime
Because a C++11 `std::equal` only iterates over the first container, and
matches with items in the second, if the second container contains more items
the check can still pass even though they're not identical. Just use `==`
instead.
Fixes#979
* Move an expression to its point of use
* Test feature macro OpenCL 3.0
* Test feature macro OpenCL 3.0 - refactor to template function
* Use test_error and format fix issues
* Fix returned value type for CL_DEVICE_MAX_GLOBAL_VARIABLE_SIZE
* Code format fix
* Feature macro test - refactor code to have one test case
* add consistency checking comparing supported features to CL_DEVICE_OPENCL_C_FEATURES
* fix minor issues
* Feature macro test - fix test version
* Feature macro test - add -cl-std=CL3.0 build option
* Feature macro test - compilation errors
* Feature macro test - compilation errors OSX
* Feature macro test - fix adding build options
* Feature macro test - share function OutputBuildLogs
* Feature macro test - back removed cases
* Feature macro test - review fixes
* Feature macro test - split check image formats
* Feature macro test - fixed version
