[nem-en] HowTo: determine new expression?

[Ivan A Eryshov]

test.n
<code>
  SomeMacro(object()); // creation of new object
  SomeMacro(meth()); // calling of method
</code>

macro.n
<code>
  macro SomeMacro(expr)
  {
    // I need ot understand is constructor of method is called. How?
  }
</code>