fixes #427, static fields emitted outside the scope of their class

test/codegen/expect/sunflower/painter.js

 dart_library.library('sunflower/painter', null, /* Imports */[
   'dart/_runtime',
   'dart/math',
   'sunflower/dom',
   'dart/core',
   'sunflower/circle'
 ], /* Lazy imports */[
 ], function(exports, dart, math, dom, core, circle) {
   'use strict';
   let dartx = dart.dartx;
   const ORANGE = "orange";
   const RED = "red";
   const BLUE = "blue";
   const TAU = dart.notNull(math.PI) * 2;
   function querySelector(selector) {
     return dom.document.querySelector(selector);
   }
   dart.fn(querySelector, dom.Element, [core.String]);
   dart.defineLazyProperties(exports, {
     get canvas() {
       return dart.as(querySelector("#canvas"), dom.CanvasElement);
-    },
+    }
+  });
+  dart.defineLazyProperties(exports, {
     get context() {
       return dart.as(exports.canvas.getContext('2d'), dom.CanvasRenderingContext2D);
     }
   });
   class CirclePainter extends core.Object {
     CirclePainter() {
       this.color = ORANGE;
     }
     draw(context) {
       context.beginPath();
@@ skipping 11 matching lines @@
     methods: () => ({draw: [dart.void, [dom.CanvasRenderingContext2D]]})
   });
   // Exports:
   exports.ORANGE = ORANGE;
   exports.RED = RED;
   exports.BLUE = BLUE;
   exports.TAU = TAU;
   exports.querySelector = querySelector;
   exports.CirclePainter = CirclePainter;
 });