[MLIR] Update APInt construction to correctly set isSigned/implicitTrunc (#110466)

This fixes all the places in MLIR that hit the new assertion added in
#106524, in preparation for enabling it by default. That is, cases where
the value passed to the APInt constructor is not an N-bit
signed/unsigned integer, where N is the bit width and signedness is
determined by the isSigned flag.

The fixes either set the correct value for isSigned, or set the
implicitTrunc flag to retain the old behavior. I've left TODOs for the
latter case in some places, where I think that it may be worthwhile to
stop doing implicit truncation in the future.

Note that the assertion is currently still disabled by default, so this
patch is mostly NFC.

This is just the MLIR changes split off from
https://github.com/llvm/llvm-project/pull/80309.

0 files changed, 0 insertions, 0 deletions