Bug 617877: Web console code completion suggestion sticks around when it shouldn't, r+a=gavin

--HG--
extra : rebase_source : 0a48fee5a403abe4b48e79360e280149c3bb5782

toolkit/components/console/hudservice/HUDService.jsm

@@ -4249,6 +4249,7 @@ JSTerm.prototype = {
   setInputValue: function JST_setInputValue(aNewValue)
   {
     this.inputNode.value = aNewValue;
+    this.completeNode.value = "";
     this.resizeInput();
   },
 

toolkit/components/console/hudservice/tests/browser/browser_webconsole_completion.js

@@ -94,6 +94,12 @@ function testCompletion() {
   jsterm.clearOutput();
   jsterm.history.splice(0);   // workaround for bug 592552
 
+  input.value = "docu";
+  jsterm.complete(jsterm.COMPLETE_HINT_ONLY);
+  is(jsterm.completeNode.value, "    ment", "'docu' completion");
+  jsterm.execute();
+  is(jsterm.completeNode.value, "", "clear completion on execute()");
+
   HUD = jsterm = input = null;
   finishTest();
 }