Add regression tests for class methods with static lifetime

Check that trying to specify a class method with static lifetime results in
an error.

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

ivtest/ivltests/sv_class_method_lt_static1.v

@@ -0,0 +1,18 @@
+// Check that specifing static lifetime for a class method taks results in an
+// error.
+
+module test;
+
+  class C;
+    // This should fail, all class methods have automatic lifetime
+    task static t(int x);
+      int y;
+      y = 2 * x;
+    endtask
+  endclass
+
+  initial begin
+    $display("FAILED");
+  end
+
+endmodule

ivtest/ivltests/sv_class_method_lt_static2.v

@@ -0,0 +1,19 @@
+// Check that specifing static lifetime for a class method function results in
+// an error.
+
+module test;
+
+  class C;
+    // This should fail, all class methods have automatic lifetime
+    function static int t(int x);
+      int y;
+      y = 2 * x;
+      return y;
+    endfunction
+  endclass
+
+  initial begin
+    $display("FAILED");
+  end
+
+endmodule

ivtest/regress-sv.list

@@ -565,6 +565,8 @@ sv_class_in_module_decl	normal,-g2009		ivltests
 sv_class_method_call_void	normal,-g2009	ivltests
 sv_class_method_default1 normal,-g2009		ivltests
 sv_class_method_default2 normal,-g2009		ivltests
+sv_class_method_lt_static1	CE,-g2009	ivltests
+sv_class_method_lt_static2	CE,-g2009	ivltests
 sv_class_method_signed1	normal,-g2009		ivltests
 sv_class_method_signed2	normal,-g2009		ivltests
 sv_class_method_var_init	normal,-g2009	ivltests