Implement stub generation for interfaces
Add a tagger for Implement Interface Explicitly
Find interface identifiers using untyped parsing
DepthTagger calls LanguageService always asynchronously
DocumentEventsListener and DepthTagger cleanup
Infer start columns and not display smart tags on complete interface implementation
Support type parameters
Merge remote-tracking branch 'upstream/master' into implement-interface-refactoring
Support interfaces inside object expressions
Merge pull request #260 from vasily-kirichenko/depth-colorized-async-initialization

DepthTagger calls LanguageService always asynchronously
Customize printing of properties
Merge pull request #242 from dungpa/implement-interface-refactoring

Add "Implement Interface" feature
fix compilation after merge
quotations are colorized in one simplest case
properly recognize multi-line quotations
use the lexer to colorize quotations properly
classifier supports quotations in type members
fix quotation colorization in some cases
SourceCodeClassifier finds quotations everywhere
SourceCodeClassifier recognizes quotations in constructor arguments and in sequences of expressions