This commit removes our local copy of clang-format 8 and replaces it
with a newly-built nuget package containing clang-format 10.
This resolves the inconsistency between our version of clang-format and
the one shipped in Visual Studio.
A couple minor format changes were either required or erroneously forced
upon us--chief among them is a redistribution of `*`s around SAL
annotations in inline class members of COM classes. Don't ask why; I
couldn't figure it out.
We had some aspirational goals for our formatting, which were left in
but commented out. Enabling them changes our format a little more than
I'm comfortable with, so I uncommented them and locked them to the
format style we've been using for the past year. We may not love it, but
our aspirations may not matter here any longer. Consistent formatting is
better than perfect formatting.
This is based on (cribbed almost directly from) code written by the
inimitable @StephanTLavavej on one of our mailing lists.
This is a nice generic version of the approach used in
JsonUtils::EnumMapper and CodepointWidthDetector: a static array of
key-value pairs that we binary-search at runtime (or at compile time, as
the case may be.)
Keys are not required to be sorted, as we're taking advantage of
constexpr std::sort (VS 16.6+) to get the compiler to do it for us. How
cool is that?
static_map presents an operator[] or at much like
std::map/std::unordered_map does.
I've added some tests, but they're practically fully-solveable at compile
time so they pretty much act like `VERIFY_IS_TRUE(true)`.
