List-in-list should be allowed by the compiler

[SaladDais]

List-in-list is a runtime error rather than a compile-time error in LSL. As such, List-in-list in a local should be a compiler warning rather than an error.

The following is a perfectly valid LSL script:

default {
  state_entry() {
    return;
    list l = [[]];
  }
}

A list-in-list in a global, however, is a compile-time error.