make continue labels unique

lib/mom/instruction/simple_call.rb

@@ -21,7 +21,7 @@ module Mom
     # return_address of the next_message, for the ReturnSequence to pick it up.
     def to_risc(compiler)
       jump_address = compiler.use_reg(:int)
-      return_label = Risc::Label.new(self,"continue")
+      return_label = Risc::Label.new(self,"continue_#{object_id}")
       save_return =  SlotLoad.new([:message,:next_message,:return_address],[return_label])
       moves = save_return.to_risc(compiler)
       moves << Risc.slot_to_reg(self, :message , :next_message , Risc.message_reg)

test/mom/test_send_dynamic.rb

@@ -32,7 +32,7 @@ module Risc
     def test_cache_check
       produced = produce_body
       assert_equal NotSame , produced.next(3).class
-      assert produced.next(34) , produced.next(3).label
+      assert_equal produced.next(34) , produced.next(3).label
     end
     def test_check_resolve
       produced = produce_body

test/mom/test_send_simple.rb

@@ -21,6 +21,10 @@ module Risc
       assert_equal FunctionCall , produced.next(19).class
       assert_equal :mod4 , produced.next(19).method.name
     end
+    def test_check_continue
+      produced = produce_body
+      assert produced.next(20).name.start_with?("continue_")
+    end
     def test_load_label
       produced = produce_body
       assert_equal Label , produced.next(14).constant.known_object.class