Adding support for tuple types (e.g. [number, string])
Addressing CR feedback, adding baselines.
Addressing CR feedback.
Adding error message for empty tuple types.
Accepting new baselines.
Merge branch 'master' into tupleTypes

Conflicts:
	tests/baselines/reference/typeName1.errors.txt
Accepting new baselines after merge.
Contextual typing of array literals is now based on the presence or absence
of numerically named properties and doesn't directly test for tuple types.
extract helpers
enbale getReferencesAtPosition
expose utility functions
enable reference tests
Enable some more tests
disable resolution for now
Add basic getReferences implementation
add some debug methods
Handel getRefrences for labels
add support for getReferences on property string index access
support getReferences on object literals
Support getReferences on contextually typed object literal properties