fix deprecations in tests

Author: mansona

packages/ember-cli-fastboot/tests/dummy/app/templates/application.hbs

@@ -5,6 +5,6 @@
 {{outlet}}
 
 <div class="shoebox">
-  {{model.key1.foo}}
-  {{model.key2.zip}}
+  {{this.model.key1.foo}}
+  {{this.model.key2.zip}}
 </div>

packages/ember-cli-fastboot/tests/integration/instance-initializers/clear-double-boot-test.js

@@ -29,7 +29,7 @@ module('Instance-initializer: clear-double-boot', function(hooks) {
     `);
 
     // render the whole tree dynamically to more closely mimc bad markup cases
-    await render(hbs`{{{BAD_HTML}}}`);
+    await render(hbs`{{{this.BAD_HTML}}}`);
 
     clearHtml();
     assert.notOk(this.element.querySelector('#fastboot-body-start'), 'There is no start marker');
@@ -41,7 +41,7 @@ module('Instance-initializer: clear-double-boot', function(hooks) {
     this.set('BAD_HTML', `<script type="x/boundary" id="fastboot-body-start"></script>`);
 
     // render the whole tree dynamically to more closely mimc bad markup cases
-    await render(hbs`{{{BAD_HTML}}}`);
+    await render(hbs`{{{this.BAD_HTML}}}`);
 
     clearHtml();