Function SystemException.this

this (
  System system,
  string msg,
  string file = __FILE__,
  ulong line = 643LU,
  object.Throwable nextInChain = null
) pure nothrow @nogc @safe;

this (
  System system,
  string msg,
  Diagnostic[] diagnostics = [],
  string file = __FILE__,
  ulong line = 654LU,
  object.Throwable nextInChain = null
) pure nothrow @nogc @safe;