Support logic and set operations on binsof (#8306)

src/V3LinkParse.cpp

@@ -1447,6 +1447,16 @@ class LinkParseVisitor final : public VNVisitor {
         }
     }
 
+    void visit(AstCoverCrossSelect* nodep) override {
+        cleanFileline(nodep);
+        iterateChildren(nodep);
+        if (!nodep->lhsp()
+            || !nodep->rhsp()) {  // Due to earlier Unsupported errors dropping only one operand
+                                  // would silently change the selected set.
+            VL_DO_DANGLING(pushDeletep(nodep->unlinkFrBack()), nodep);
+        }
+    }
+
     void visit(AstCoverCross* nodep) override {
         cleanFileline(nodep);
         // Move options out of the mixed parse-time body, leaving only cross bins.