Move sunflower to a new directory, make final tweaks to make it all work.

test/codegen/expect/dom.js

-var dom;
-(function(exports) {
-  'use strict';
-  class JsName extends core.Object {
-    JsName(opt$) {
-      let name = opt$.name === void 0 ? null : opt$.name;
-      this.name = name;
-    }
-  }
-  class Overload extends core.Object {
-    Overload() {
-    }
-  }
-  let overload = new Overload();
-  class Event extends core.Object {
-  }
-  class RenderingContext extends core.Object {
-  }
-  class CanvasDrawingStyles extends core.Object {
-    CanvasDrawingStyles() {
-      this.lineWidth = null;
-      this.lineCap = null;
-      this.lineJoin = null;
-      this.miterLimit = null;
-      this.lineDashOffset = null;
-      this.font = null;
-      this.textAlign = null;
-      this.textBaseline = null;
-    }
-  }
-  class CanvasPathMethods extends core.Object {
-  }
-  // Exports:
-  exports.JsName = JsName;
-  exports.Overload = Overload;
-  exports.overload = overload;
-  exports.Event = Event;
-  exports.RenderingContext = RenderingContext;
-  exports.CanvasDrawingStyles = CanvasDrawingStyles;
-  exports.CanvasPathMethods = CanvasPathMethods;
-})(dom || (dom = window));