Fuzzer: Segfault on initialization from invalid expression

[veripoolbot]

---

Author Name: Eric Rippey
Original Redmine Issue: 1579 from https://www.veripool.org

Original Assignee: Wilson Snyder (@wsnyder)

---

Running the attached testcase with:

verilator_bin --lint-only 1.sv

On version:

Verilator 4.020 devel rev v4.020-56-gbcb766b

Produces:

%Error: 1.sv:1: Unsupported: Member call on non-enum object 'VARREF 'g'' which is a 'BASICDTYPE 'logic''
tri g=g.and.g;
         ^~~
Segmentation fault (core dumped)

[veripoolbot]

---

Original Redmine Comment
Author Name: Wilson Snyder (@wsnyder)
Original Date: 2019-11-05T03:00:42Z

---

Fixed in git by adding Internal error.