Internals: Remove m_pkgp and m_classp from WidthVisitor (#4402)

src/V3Task.cpp

@@ -1322,7 +1322,7 @@ private:
         }
 
         // Mark the fact that this function allocates std::process
-        if (nodep->isFromStd() && nodep->name() == "self") cfuncp->setNeedProcess();
+        if (nodep->needProcess()) cfuncp->setNeedProcess();
 
         // Delete rest of cloned task and return new func
         VL_DO_DANGLING(pushDeletep(nodep), nodep);