Union types in contextual signature instantiations
Adding tests
Parentheses in type literals
Accepting new baselines
Changing type-to-string conversions to use parentheses
Fixing fourslash test
Addressing CR feedback
Merge pull request #908 from Microsoft/contextualSignatureUnionTypes

Union types in contextual signature instantiations
Updating Language Specification
Removing doc\header.md from jakefile, fixing formatting
Formatting fixes
Adding tests
Require optional properties to be present in subtypes
Remove unused getBestCommonType method (unrelated change)
Accepting new baselines
Merge pull request #914 from Microsoft/parensInTypes

Parentheses in type literals
Adding missing blank
Merge branch 'master' into optionalPropertySubtyping

Conflicts:
	tests/baselines/reference/arrayLiteralWithMultipleBestCommonTypes.types
Merge pull request #919 from Microsoft/optionalPropertySubtyping

Require optional properties to be present in subtypes
Address PR feedback
Merge branch 'master' into sigHelp