tests: Add avm2/edittext_ime_focus_lost test

This test verifies how IME behaves when the focus is lost.

Author: kjarosh

tests/tests/swfs/avm2/edittext_ime_focus_lost/Test.as

@@ -0,0 +1,37 @@
+package {
+import flash.display.*;
+import flash.text.*;
+import flash.events.*;
+import flash.utils.setTimeout;
+
+[SWF(width="100", height="100", frameRate="1")]
+public class Test extends MovieClip {
+    public function Test() {
+        var tf = new TextField();
+        tf.border = true;
+        tf.type = "input";
+        tf.width = 100;
+        tf.height = 100;
+        addChild(tf);
+        stage.focus = tf;
+
+        setTimeout(function() {
+            trace("Before: " + tf.text);
+            trace("  " + tf.length);
+            trace("  " + tf.selectionBeginIndex);
+            trace("  " + tf.selectionEndIndex);
+
+            stage.focus = null;
+
+            trace("After: " + tf.text);
+            trace("  " + tf.length);
+            trace("  " + tf.selectionBeginIndex);
+            trace("  " + tf.selectionEndIndex);
+        }, 4500);
+
+        tf.addEventListener("textInput", function(evt:TextEvent):void {
+            trace("input " + evt.text);
+        });
+    }
+}
+}

tests/tests/swfs/avm2/edittext_ime_focus_lost/input.json

@@ -0,0 +1,10 @@
+[
+  { "type": "ImePreedit", "text": "", "cursor": null },
+  { "type": "ImePreedit", "text": "q", "cursor": [1, 1] },
+  { "type": "Wait" },
+  { "type": "Wait" },
+  { "type": "Wait" },
+  { "type": "Wait" },
+  { "type": "Wait" },
+  { "type": "ImePreedit", "text": "", "cursor": null }
+]

tests/tests/swfs/avm2/edittext_ime_focus_lost/output.txt

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+Before: q
+  1
+  1
+  1
+input q
+After: q
+  1
+  1
+  1

tests/tests/swfs/avm2/edittext_ime_focus_lost/test.swf

@@ -0,0 +1 @@
+num_ticks = 6