AS3 generated constructors with default vals don't compile.

[Florentine, Justin F.]

The code generated for as3 constructors doesn't compile in Flex 3.6.  Dunno 
much about as3 or if this is intentional or not, but a patch to fix it is below.

Index: compiler/cpp/src/generate/t_as3_generator.cc
===================================================================
--- compiler/cpp/src/generate/t_as3_generator.cc        (revision 981076)
+++ compiler/cpp/src/generate/t_as3_generator.cc        (working copy)
@@ -696,7 +696,8 @@
  for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
    t_type* t = get_true_type((*m_iter)->get_type());
    if ((*m_iter)->get_value() != NULL) {
-      print_const_value(out, "this." + (*m_iter)->get_name(), t, 
(*m_iter)->get_value(), true, true);
+      indent(out) << "this._" << (*m_iter)->get_name() << " = " << 
(*m_iter)->get_value()->get_integer() << ";" <<
+      endl;
    }
  }
  indent_down();