Get the container of the specialized symbol from the symbol it was specialized from
Checking indexer constraints during type check
Add grammar checks for export assignment statements.
Emit comments on return statements.
Adding tests.
Start moving over to one type data model to better handle merged types
Improve logic for detecting duplicate variable declarations
Add support for modules and interfaces augmenting classes
Do not emit type parameter constraints on a *reference* to a type parameter in declaration files.

*Do* show constraints for type parameters in quick info.
Code cleanup.
Propagate contextual type through return statements
Update LKG.
Update LKG.
Emit code properly when you have an arrow function with a comment on the arrow body.
Reenabling test.
Disable assignment from to enum type object
Accept enum type and its instance type as assignment compatable
Add short name for declaration command line option
Restrict augmentations on class types
Extracting method.