[Version 11.0] Feature support for pattern match span char on constant string#1594

RexJaeschke wants to merge 2 commits intodraft-v11dotnet/csharpstandard:draft-v11from

v11-pattern-match-Span-char-on-constant-stringdotnet/csharpstandard:v11-pattern-match-Span-char-on-constant-stringCopy head branch name to clipboard