import.meta Support in SystemJS

TypeScript 3.6 supports transforming import.meta to context.meta when your module target is set to system.

// This module:
console.log(import.meta.url)
// gets turned into the following:
System.register([], function (exports, context) {
  return {
    setters: [],
    execute: function () {
      console.log(context.meta.url);
    }
  };
});