[NCCL] Add more details for checkForNCCLErrors (#54117)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54117
https://github.com/pytorch/pytorch/pull/45950 enhanced our NCCL logging errors so that we add some basic debug information about what when wrong when erroring out with a NCCL error.
However, that PR only used the added function for `C10D_NCCL_CHECK` which is used to check the return values of NCCL calls. However, in ProcessGroupNCCL we also have `checkForNCCLErrors` which checks for errors on nccl communicators, and in case of errors it would be good to have this logging there too.
Also renames the function s/errorMessage/getNcclErrorDetailStr
ghstack-source-id: 124662592
Test Plan: CI
Reviewed By: zhaojuanmao
Differential Revision: D27100497
fbshipit-source-id: fec3663ffa3e92bae8391ef4f77054abb4bb9715
