Initial work on classified quick info.
Clean up symbol writing API.
Place symbolToString above symbolToDisplayParts.
Support getting symbolDisplayParts for types as well as symbols.
Flash out QuickInfo implementation.
Hook up quick info shims.
Update names.
More quick info work.
Tweak the appearance to match the old managed LS behavior.
Update quickinfo formatting.
Merge branch 'master' into classifiedQuickInfo
Provide capability to ask the checker what the constant value of an enum member is.
Include the values of constant enums in quick-info.
Rename Comment->CommentRange.
Add support for getting the doc comment from a symbol.
Show documentation comments in quick info.
Moved to new tree for brace matching.
Fixed fourslash bug for adjacent braces, courtesy of @mhegazy.
Moved old fourslash test for brace matching over from fourslash_old.
Addressed code review feedback.