Add regression test for wildcard imports in bare delays

Check that a bare delay identifier before a wildcard package import resolves
an outer constant. Check that a following bare delay activates the import and
resolves the package constant.

Run the test through the native and vlog95 backends.

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

ivtest/ivltests/sv_package_import_order_delay.v

@@ -0,0 +1,48 @@
+// Check that a bare delay identifier activates a wildcard package import.
+
+package p;
+  parameter delay = 2;
+endpackage
+
+parameter delay = 1;
+
+module test;
+
+  integer before_time;
+  integer after_time;
+  reg failed;
+
+  `define check(val, exp) \
+    if (val !== exp) begin \
+      $display("FAILED(%0d). '%s' expected %0d, got %0d", `__LINE__, \
+               `"val`", exp, val); \
+      failed = 1'b1; \
+    end
+
+  initial begin
+    before_time = -1;
+    #delay;
+    before_time = $time;
+  end
+
+  import p::*;
+
+  initial begin
+    after_time = -1;
+    #delay;
+    after_time = $time;
+  end
+
+  initial begin
+    failed = 1'b0;
+    #3;
+
+    `check(before_time, 1);
+    `check(after_time, 2);
+
+    if (!failed) begin
+      $display("PASSED");
+    end
+  end
+
+endmodule

ivtest/regress-vvp.list

@@ -403,6 +403,7 @@ sv_net_array_decl_assign	vvp_tests/sv_net_array_decl_assign.json
 sv_net_decl_assign		vvp_tests/sv_net_decl_assign.json
 sv_package_import_copy_new	vvp_tests/sv_package_import_copy_new.json
 sv_package_import_cross_unit	vvp_tests/sv_package_import_cross_unit.json
+sv_package_import_order_delay	vvp_tests/sv_package_import_order_delay.json
 sv_package_import_order_dotstar	vvp_tests/sv_package_import_order_dotstar.json
 sv_package_import_order_explicit	vvp_tests/sv_package_import_order_explicit.json
 sv_package_import_order_named	vvp_tests/sv_package_import_order_named.json

ivtest/vvp_tests/sv_package_import_order_delay.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "sv_package_import_order_delay.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}