polyfills and calling local swift code

[jcassidyav]

repo: https://github.com/jcassidyav/testnapi

Issue 1: I have code in pollyfils overriding performance this crashes with this runtime. ( this is an old project so these may not be needed, but still it is a difference ) see polyfills.ts

Issue 2: There is some local swift code, this crashes when trying to call the method., see main.ts