llvm-morello-csa-13.0.d20231117

[CHERI_CSA] ProvenanceSource: suppress with -Wno-cheri-provenance

If [-Wcheri-provenance] compiler warning is disabled, do not emit
ambiguous provenance warning for cases when the default choice of
LHS as a source of provenance will probably be fine.

Binary operations with provenance-carrying RHS are reported anyway,
as this may indicate a real bug.