Enable fourslash signature help tests
Signature help present with completed signatures
Semantic filtering of candidate signatures
Start testing signature counts and adjust some syntactic computations
Move findPrecedingToken to ServicesSyntaxUtilities
Extract findListItem from smart indenter
Begin packaging of signature help items
Remove TrailingCommaBehavior in favor of two boolean parameters
Revert to old behavior for forEach
Add applicableSpan to SignatureHelpItems
Create SignatureHelpParameters
Add an OmittedExpression for trailing commas in calls
Further changes to parser for OmittedExpressions, and make checker resilient to them
Fill out more of the SignatureHelpItem and SignatureHelpParameter structures
Fix name printing in signature help
Refactor collectCandidates and add type parameters to signature display
Disable failing tests for generics and overloads
Minor fixes in getSignatureHelpItems
Initial draft of getSignatureHelpCurrentArgumentState
Refactor signature help into separate file