add test for nested closures, touch struct method where changes were …

…added in master

I didn't reimplement nested closure support, because I'm not sure of where things need to be changed yet.

It looks like
  lib/mirah/ast/structure.rb
and
  src/org/mirah/typer/closures.mirah
need some changes for this to work.

lib/mirah/ast/structure.rb

@@ -142,10 +142,11 @@ def prepare(typer, method)
       interface = method.argument_types[-1]
       outer_class = find_parent(MethodDefinition, Script).defining_class
       name = "#{outer_class.name}$#{duby.tmp}"
+
       klass = mirah.define_closure(position, name, outer_class)
       klass.interfaces = [interface]
 
-      binding = typer.get_scope(self).binding_type(outer_class, duby)
+      binding = typer.get_scope(self).binding_type(outer_class, mirah)
 
       klass.define_constructor(position,
                                ['binding', binding]) do |c|

test/jvm/blocks_test.rb

@@ -255,7 +255,7 @@ def test_block_with_no_params_on_interface_with
         interface Bar do
           def run(a:string):void;end
         end
-        
+
         class Foo
           def foo(a:Bar)
             1
@@ -274,7 +274,7 @@ def test_block_with_too_many_params
         interface Bar do
           def run(a:string):void;end
         end
-        
+
         class Foo
           def foo(a:Bar)
             1
@@ -286,4 +286,21 @@ def foo(a:Bar)
         CODE
       end
   end
+
+  def test_closure_in_closure_doesnt_raise_error
+    parse_and_type(<<-CODE)
+        interface Bar do;def run:void;end;end
+      
+        class Foo
+          def foo(a:Bar)
+            1
+          end
+        end
+        Foo.new.foo do
+          Foo.new.foo do
+            1
+          end
+        end
+      CODE
+  end
 end