[CUDA] Fix tests after 76c69de591b3 (#36990)
Fix call-device-fn-from-host.cu and call-host-fn-from-device.cu tests
that broke after commit 76c69de591b3 which added support for skipping
CUDA call checks in discarded if constexpr branches.
The issue was that our CheckCall was being invoked on uninstantiated
function templates during definition, before if constexpr conditions
were
resolved. This caused false positives because at template definition
time:
- The condition is dependent, so we don't know which branch is taken
- The evaluation context is not marked as discarded
- CheckCall would emit errors for both branches
The fix skips CUDA call checking for callers in dependent contexts
(uninstantiated templates), deferring the check until instantiation
when if constexpr branches are properly resolved and discarded branches
are skipped.
Fixes: CMPLRLLVM-75431
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-authored-by: iclsrc <iclsrc@intel.com>
