OpenVAF crash when compiling

[gjcoram]

The attached Verilog-A module caused OpenVAF to crash and produce the attached log file. Note that this module does have a declared parameter, so it's not the same issue as #103 white_noise_i.va.txt openvaf-crash-1713217346.log

[gjcoram]

white2.va compiles. Notes:

1. OpenVAF does not like having only a noise contribution -- and you can't fake it out by having a 0 dc contribution I(a,b) <+ 0;
2. OpenVAF does not like having only a single terminal.

white1.va.txt white2.va.txt white3.va.txt

[gjcoram]

Debug stack trace:

thread '' panicked at 'called Option::unwrap() on a None value', openvaf/osdi/src/inst_data.rs:902:26 stack backtrace: 0: rust_begin_unwind at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/panicking.rs:584:5 1: core::panicking::panic_fmt at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/core/src/panicking.rs:142:14 2: core::panicking::panic at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/core/src/panicking.rs:48:5 3: core::option::Option<T>::unwrap at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/core/src/option.rs:775:21 4: osdi::inst_data::<impl osdi::compilation_unit::OsdiCompilationUnit>::load_eval_output at ./openvaf/osdi/src/inst_data.rs:900:53 5: osdi::load::<impl osdi::compilation_unit::OsdiCompilationUnit>::load_noise at ./openvaf/osdi/src/load.rs:63:27