Lots of BSL_OVERRIDES_STL improvements.
Lots of BSL_OVERRIDES_STL improvements.

yahiahisham14/bde_verify,bloomberg/bde_verify,seanlth/bde_verify,yahiahisham14/bde_verify,yahiahisham14/bde_verify,seanlth/bde_verify,bloomberg/bde_verify,seanlth/bde_verify,bloomberg/bde_verify,bloomberg/bde_verify,yahiahisham14/bde_verify,seanlth/bde_verify,bloomberg/bde_verify