more block tests

instance and arg access

test/risc/interpreter/blocks/test_call_simple.rb

@@ -0,0 +1,15 @@
+require_relative "../helper"
+
+module Risc
+  class BlockCallSimple < MiniTest::Test
+    include Ticker
+    def setup
+      @string_input = block_main("a = yielder {return 16.div4} ; return a")
+      super
+    end
+    def test_chain
+      run_all
+      assert_equal 4 , get_return
+    end
+  end
+end