Unify partest filter to reuse code when using files and CLI arguments
Fix #500: Avoid removal of duplicate percentage signs by Node.js
Fix #501: Never eliminate ClassData of hijacked classes
Fix #503: Never eliminate RuntimeLong.fromDouble
Fix #504: Fix typo in java.lang.Class (getSuperClass -> getSuperclass)
Fix #505: Implement StringBuilder(Buffer).setCharAt
Fix #508: Ignore irrelevant DCE warnings in partest
Fix #513: Suppress info from ScalaJSOptimizer in partest
Fix #492: Classify last partests. Partests fully work with --fastOpt
Merge pull request #510 from gzm0/fix-partests

Fix partests
Minor cleanup (unneeded parens and braces)
Get rid of genCallHelper in GenJSCode
Improve state management in GenJSCode
Merge pull request #519 from gzm0/various-cleanups

Various cleanups