tests: Add avm1/edittext_ime_focus_lost test

This test verifies the behavior of IME and text
selection when losing focus.

Author: kjarosh

tests/tests/swfs/avm1/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/avm1/edittext_ime_focus_lost/output.txt

@@ -0,0 +1,7 @@
+Before: q
+  1
+  q|
+Changed: q|
+After: q|
+  2
+  |q|

tests/tests/swfs/avm1/edittext_ime_focus_lost/test.as

@@ -0,0 +1,22 @@
+_root.createTextField("text", _root.getNextHighestDepth(), 0, 0, 100, 100);
+text.type = "input";
+Selection.setFocus(text);
+text.onChanged = function() {
+    trace("Changed: " + text.text);
+};
+
+setTimeout(function() {
+    trace("Before: " + text.text);
+    trace("  " + text.length);
+    text.replaceSel("|");
+    trace("  " + text.text);
+
+    Selection.setFocus(null);
+
+    setTimeout(function() {
+        trace("After: " + text.text);
+        trace("  " + text.length);
+        text.replaceSel("|");
+        trace("  " + text.text);
+    }, 1000);
+}, 5000);

tests/tests/swfs/avm1/edittext_ime_focus_lost/test.swf

@@ -0,0 +1 @@
+num_ticks = 8