* chore: Add puppeteer-core as a dev dependency.
* fix: Make mocha tests run in a fake-focused window.
* fix: Make `test:mocha:interactive` use the same gulp codepath as `test`.
* Reduce usage of obsolete .keyCode property.
* Rename private properties/methods which violate eslint rules.
* Use arrays of bound events rather than individual properties.
* Improve typing info.
* Also fix O(n^2) recursive performance issue in theme's getComponentStyle function.
* And replace String(...) with '${...}' (smaller, faster).
* .toString() is considered harmful.
* docs(icon): Better description for Icon.prototype.setVisible
Also tweak description of getBlock.
* docs(blocks): Fix typo in description of BlockDefinition
* chore(tests): Factor out common goog:chromeOptions
* chore(build): Minor style fixes
* Add tsick.js to rewrite enums.
tsc generates JavaScript which is incompatible with the Closure Compiler's advanced optimizations.
* Remove unused 'outputCode' variable.
* Rename 'run_X_in_browser.js' to 'webdriver.js'
The Mocha and generator tests can both be run either manually or via our webdriver. In all cases they run in a browser. These two 'run_X_in_browser.js' files only apply to webdriver, thus they are confusingly named.
Also delete completely unused (and broken) `run_all_tests.sh`
* Linting improvements to mocha/webdriver.js
Still not at 100%. Complains about require/module/process/__dirname not being defined in multiple places.
* runTestBlock -> runTestFunction
'Block' means something very different in Blockly.
* Removal of `var` from scripts.
* Add webdriver test to verify compile test worked.
* Resolve conficts with 'develop'.
* Address PR comments.
