* Update to Clang 10 and Visual Studio 2019 version 16.6p2
* re-clang-formats the tree to comply with new clang 10 clang-format
* updates our agents to F series VMs which are faster and cheaper for our build workloads
* defaults scale set to 0 VMs and lets the Azure Pipelines service control all resizing
* fix tests to pass with the new compilers
Co-authored by Casey Carter and Curtis Bezault
Fixes#187.
Add TRANSITION comments for #248 and #249, blocked by compiler bugs.
Add `_Enabled` names. When we don't have `enable_if_t`, this makes the
template parameter's purpose clearer. When we do have `enable_if_t`
but without `= 0`, this makes it somewhat clearer that we haven't
forgotten the default argument (it's simply elsewhere).
Resolves#55.
* Deprecate experimental::erase
* Implement P1209R0
* Update yvals_core.h
* Update deprecations and remove <experimental/xutility>
* move and reorder erase/erase_if
* moved _Erase and remove and friends to <xmemory>
* Consistently place erase_if() definitions.
Billy O'Neal
Daniel Marshall
Michael Schellenberger Costa
Stephan T. Lavavej