[flang][OpenMP] Add diagnostic for ATOMIC WRITE with pointer to non-intrinsic type (#162364) Fixes https://github.com/llvm/llvm-project/issues/161932 Added a check for non-intrinsic types in non-pointer assignments. Added bool checkTypeOnPointer = true to both CheckAtomicVariable and CheckAtomicType. All atomic assignment functions now pass !IsPointerAssignment(...) to control the check. The pointer-to-non-intrinsic check lives in CheckAtomicType, guarded by the checkTypeOnPointer flag. The check now applies uniformly to all atomic operations while properly excluding pointer assignments (=>). --------- Co-authored-by: Krish Gupta <krishgupta@Krishs-MacBook-Air.local>
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