Add TS compile check before tests for core-owned packages #2515
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Our test Typescript compiler,
ts-loader
for Webpack, doesn't exit if there's a compilation error. If it's a minor error (type mismatch) which doesn't prevent compilation to JavaScript, it will show the error, but create the file, and exit with a 0 code, then run tests. Although these are minor errors, they seem worth catching in the tests.This change fixes a type error in analytics tests and updates test scripts for all JScore-owned packages to try TS compilation before running tests. Will roll out to other packages in a future change.