NF does not provide meaningful error message when missing component declaration

[Francesco Casella]

Steps to reproduce:

• load the attached test package
• check model M

The following error message is generated:

[1] 11:59:26 Translation Error
Internal error Instantiation of P.M failed with no error message.

Obviously, the problem here is that the component bus is not declared in M - the compiler should explain this explicitly.

[Per Östlund]

Fixed in f755c732, the NF now gives the standard "Variable not found" error in this case.

[Francesco Casella]

Thanks Per!