move interpreter tests to register

to shadow the interpreter move / the lib structure

test/register/interpreter/test_if.rb

@@ -0,0 +1,41 @@
+require_relative "helper"
+
+class IfTest < MiniTest::Test
+  include Ticker
+
+  def setup
+    @string_input = <<HERE
+class Object
+  int itest(int n)
+    if_zero( n - 12)
+      "then".putstring()
+    else
+      "else".putstring()
+    end
+  end
+
+  int main()
+    itest(20)
+  end
+end
+HERE
+    super
+  end
+
+  def test_if
+      #show_ticks # get output of what is
+      check_chain ["Branch","Label","LoadConstant","GetSlot","SetSlot",
+     "LoadConstant","SetSlot","FunctionCall","Label","GetSlot",
+     "GetSlot","SetSlot","LoadConstant","SetSlot","LoadConstant",
+     "SetSlot","LoadConstant","SetSlot","LoadConstant","SetSlot",
+     "RegisterTransfer","FunctionCall","Label","GetSlot","LoadConstant",
+     "OperatorInstruction","IsZero","GetSlot","LoadConstant","SetSlot",
+     "LoadConstant","SetSlot","LoadConstant","SetSlot","LoadConstant",
+     "SetSlot","RegisterTransfer","FunctionCall","Label","GetSlot",
+     "GetSlot","RegisterTransfer","Syscall","RegisterTransfer","RegisterTransfer",
+     "SetSlot","Label","FunctionReturn","RegisterTransfer","GetSlot",
+     "GetSlot","Branch","Label","Label","FunctionReturn",
+     "RegisterTransfer","GetSlot","GetSlot","Label","FunctionReturn",
+     "RegisterTransfer","Syscall","NilClass"]
+  end
+end