Typescript improvements with tests#449

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scottmcdonnell wants to merge 4 commits intospadgos:developfrom

scottmcdonnell:typescript

Commits on Sep 18, 2017

added test for TypeScript and TypeScriptReact languages
Scott McDonnell
committed
add .tsx files to the Typescript sourceLang so they are treated the same as .ts files
Scott McDonnell
committed
add typescript tests and fix for arrow functions and typed variables
Scott McDonnell
committed

Commits on Sep 19, 2017

add support for Union Types with tests
Scott McDonnell
committed