fix computed override deprecation warnings

Author: Gaurav0

app/templates/ember-cli.hbs

@@ -7,9 +7,9 @@
     <li class="toc-level-0">
       Projects
       <ol class="toc-level-1 selected" style="display: block;">
-        <li class="toc-level-1">{{#link-to 'project' 'ember' active=(eq activeProject 'ember') class="spec-ember"}}Ember{{/link-to}}</li>
-        <li class="toc-level-1">{{#link-to 'project' 'ember-data' active=(eq activeProject 'ember-data') class="spec-ember-data"}}Ember Data{{/link-to}}</li>
-        <li class="toc-level-1">{{#link-to 'project' 'ember-cli' active=(eq activeProject 'ember-cli') class="spec-ember"}}Ember CLI{{/link-to}}</li>
+        <li class="toc-level-1">{{#link-to 'project' 'ember' current-when=(eq activeProject 'ember') class="spec-ember"}}Ember{{/link-to}}</li>
+        <li class="toc-level-1">{{#link-to 'project' 'ember-data' current-when=(eq activeProject 'ember-data') class="spec-ember-data"}}Ember Data{{/link-to}}</li>
+        <li class="toc-level-1">{{#link-to 'project' 'ember-cli' current-when=(eq activeProject 'ember-cli') class="spec-ember"}}Ember CLI{{/link-to}}</li>
       </ol>
     </li>
   </ol>

app/templates/project-version.hbs

@@ -6,9 +6,9 @@
     <li class="toc-level-0">
       Projects
       <ol class="toc-level-1 selected" style="display: block;">
-        <li class="toc-level-1">{{#link-to 'project' 'ember' active=(eq activeProject 'ember') class="spec-ember"}}Ember{{/link-to}}</li>
-        <li class="toc-level-1">{{#link-to 'project' 'ember-data' active=(eq activeProject 'ember-data') class="spec-ember-data"}}Ember Data{{/link-to}}</li>
-        <li class="toc-level-1">{{#link-to 'project' 'ember-cli' active=(eq activeProject 'ember-cli') class="spec-ember"}}Ember CLI{{/link-to}}</li>
+        <li class="toc-level-1">{{#link-to 'project' 'ember' current-when=(eq activeProject 'ember') class="spec-ember"}}Ember{{/link-to}}</li>
+        <li class="toc-level-1">{{#link-to 'project' 'ember-data' current-when=(eq activeProject 'ember-data') class="spec-ember-data"}}Ember Data{{/link-to}}</li>
+        <li class="toc-level-1">{{#link-to 'project' 'ember-cli' current-when=(eq activeProject 'ember-cli') class="spec-ember"}}Ember CLI{{/link-to}}</li>
       </ol>
     </li>
   </ol>

config/deprecation-workflow.js

@@ -1,6 +1,6 @@
 self.deprecationWorkflow = self.deprecationWorkflow || {};
 self.deprecationWorkflow.config = {
   workflow: [
-    { handler: "silence", matchId: "computed-property.override" }
+    { handler: "throw", matchId: "computed-property.override" }
   ]
 };