massive typemap unification

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7676 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/ruby/director_exception_runme.rb

@@ -14,6 +14,12 @@ class MyFoo2 < Foo
   end
 end
 
+class MyFoo3 < Foo
+  def ping
+    5 # error: should return a string
+  end
+end
+
 ok = false
 
 a = MyFoo.new
@@ -38,5 +44,16 @@ rescue TypeError
   ok = true
 end
 
+
+a = MyFoo3.new
+b = launder(a)
+
+begin
+  b.pong
+rescue TypeError
+  ok = true
+end
+
+
 raise RuntimeError unless ok