Add regression test for functions with bounded queue return type

Check that the maximum size of a bounded queue is properly handled when
being used as the return type for a function.

Elements beyond the maximum size should be ignored.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

ivtest/ivltests/sv_queue_function2.v

@@ -0,0 +1,24 @@
+// Check that bounded queues are supported as function return types.
+
+module test;
+
+  typedef int Q[$:1];
+
+  function automatic Q f();
+    // The last element should be discarded
+    return '{1, 2, 3};
+  endfunction
+
+  initial begin
+    int q[$];
+
+    q = f();
+
+    if (q.size() == 2 && q[0] == 1 && q[1] == 2) begin
+      $display("PASSED");
+    end else begin
+      $display("FAILED");
+    end
+  end
+
+endmodule

ivtest/regress-sv.list

@@ -582,7 +582,8 @@ sv_port_default14	CE,-g2009		ivltests
 sv_queue1		normal,-g2009		ivltests
 sv_queue2		normal,-g2009		ivltests
 sv_queue3		normal,-g2009		ivltests
-sv_queue_function	normal,-g2009		ivltests
+sv_queue_function1	normal,-g2009		ivltests
+sv_queue_function2	normal,-g2009		ivltests
 sv_queue_parray		normal,-g2009,-pfileline=1	ivltests gold=sv_queue_parray.gold
 sv_queue_parray_bounded	normal,-g2009,-pfileline=1	ivltests gold=sv_queue_parray_bounded.gold
 sv_queue_parray_fail	CE,-g2009		ivltests gold=sv_queue_parray_fail.gold

ivtest/regress-vlog95.list

@@ -470,7 +470,8 @@ pr3390385b		CE,-g2009		ivltests  # ++
 pr3390385c		CE,-g2009		ivltests  # ++
 pr3390385d		CE,-g2009		ivltests  # ++
 pr3462145		CE,-g2009		ivltests  # ++
-sv_queue_function	CE,-g2009,-pallowsigned=1	ivltests  # queue
+sv_queue_function1	CE,-g2009,-pallowsigned=1	ivltests  # queue
+sv_queue_function2	CE,-g2009,-pallowsigned=1	ivltests  # queue
 sv_typedef_darray_base1	CE,-g2009		ivltests  # Dyanmic array
 sv_typedef_darray_base2	CE,-g2009		ivltests  # Dyanmic array
 sv_typedef_darray_base3	CE,-g2009		ivltests  # Dyanmic array