Fix method calls on function return values.

Changes

@@ -48,6 +48,7 @@ Verilator 5.011 devel
 * Fix missing assignment for wide unpacked structs (#4233). [Jiamin Zhu]
 * Fix detection of wire/reg duplicates.
 * Fix false IMPLICITSTATIC on package functions.
+* Fix method calls on function return values.
 
 
 Verilator 5.010 2023-04-30

src/V3LinkDot.cpp

@@ -3040,6 +3040,10 @@ private:
             nodep->replaceWith(newp);
             VL_DO_DANGLING(pushDeletep(nodep), nodep);
             return;
+        } else if (m_ds.m_dotp && m_ds.m_dotPos == DP_SCOPE) {
+            // HERE function() . method_called_on_function_return_value()
+            m_ds.m_dotPos = DP_MEMBER;
+            m_ds.m_dotText = "";
         } else {
             checkNoDot(nodep);
         }

test_regress/t/t_class_func_dot.pl

@@ -0,0 +1,21 @@
+#!/usr/bin/env perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2020 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+scenarios(simulator => 1);
+
+compile(
+    );
+
+execute(
+    check_finished => 1,
+    );
+
+ok(1);
+1;

test_regress/t/t_class_func_dot.v

@@ -0,0 +1,31 @@
+// DESCRIPTION: Verilator: Verilog Test module
+//
+// This file ONLY is placed under the Creative Commons Public Domain, for
+// any use, without warranty, 2023 by Wilson Snyder.
+// SPDX-License-Identifier: CC0-1.0
+
+class Cls_report_object;
+   string m_msg;
+   function string get_msg;
+      return m_msg;
+   endfunction
+endclass
+
+function Cls_report_object get_report_object;
+   Cls_report_object c;
+   c = new;
+   c.m_msg = "hello";
+   return c;
+endfunction
+
+module t (/*AUTOARG*/);
+
+   string s;
+
+   initial begin
+      Cls_report_object _local_report_object;
+      s = get_report_object().get_msg();
+      $write("*-* All Finished *-*\n");
+      $finish;
+   end
+endmodule