Mirror changes from dotnet/coreclr (dotnet/corefx#34987)
authorStephen Toub <stoub@microsoft.com>
Thu, 31 Jan 2019 17:09:58 +0000 (12:09 -0500)
committerGitHub <noreply@github.com>
Thu, 31 Jan 2019 17:09:58 +0000 (12:09 -0500)
* Reverting "Fixing up the UTF8Formatter and some tests to properly handle -0.0" (dotnet/corefx#22300)

Signed-off-by: dotnet-bot <dotnet-bot@microsoft.com>
* Add managed implementation of GetSystemMaxDBCSCharSize (dotnet/corefx#22290)

Signed-off-by: dotnet-bot <dotnet-bot@microsoft.com>
Commit migrated from https://github.com/dotnet/corefx/commit/35a2040b73969b0d69a3cc0d358eb91c5238de26


Trivial merge