Add support to Document::getAnnots method

testing/resources/javascript/bug_492_1.in

Index: testing/resources/javascript/bug_492_1.in
diff --git a/testing/resources/javascript/bug_492_1.in b/testing/resources/javascript/bug_492_1.in
new file mode 100644
index 0000000000000000000000000000000000000000..f2b03b01bc78ab42e008383e4908178909b9b6e8
--- /dev/null
+++ b/testing/resources/javascript/bug_492_1.in
@@ -0,0 +1,95 @@
+{{header}}
+{{object 1 0}} <<
+  /Type /Catalog
+  /Pages 2 0 R
+  /OpenAction 20 0 R
+>>
+endobj
+{{object 2 0}} <<
+  /Type /Pages
+  /Count 2
+  /Kids [
+    10 0 R
+    11 0 R
+  ]
+>>
+endobj
+% Page number 0.
+{{object 10 0}} <<
+  /Type /Page
+  /Parent 2 0 R
+  /Resources <<
+    /Font <</F1 15 0 R>>
+  >>
+  /MediaBox [0 0 612 792]
+  /Annots [
+    22 0 R
+  ]
+  /Tabs /R
+>>
+endobj
+% Page number 1.
+{{object 11 0}} <<
+  /Type /Page
+  /Parent 2 0 R
+  /Resources <<
+    /Font <</F1 15 0 R>>
+  >>
+  /MediaBox [0 0 612 792]
+  /Annots [
+    22 0 R
+  ]
+  /Tabs /C
+>>
+endobj
+
+% OpenAction action
+{{object 20 0}} <<
+  /Type /Action
+  /S /JavaScript
+  /JS 21 0 R
+>>
+endobj
+% JS program to exexute
+{{object 21 0}} <<
+>>
+stream
+  var annots = this.getAnnots();
+  for (var i = 0; i < annots.length; i++)
+    app.alert(annots[i].name);
+endstream
+endobj
+
+{{object 22 0}} <<
+  /Type /Annot
+  /Subtype  /Highlight
+  /QuadPoints [
+    115.80264
+    718.9139232
+    157.211172
+    718.9139232
+    115.80264
+    706.26441
+    6
+    157.211172
+    706.264416
+  ]
+  /Rect [ 115.75062 706.328568 157.001868 719.2715904 ]
+  /F 4
+  /Border [ 0 0 1 ]
+  /C [ 1 1 0 ]
+  /CA 1
+  /Contents <feff>
+  /M (D:20160712221733)
+  /NM (annot_s_name)
+  /P 9 0 R
+  /T <feff004a006100650020004800790075006e0020005000610072006b>
+>>
+endobj
+
+{{xref}}
+trailer <<
+  /Root 1 0 R
+>>
+{{startxref}}
+%%EOF