Emit error if field that is asynchronously reset uses a dynamic reset value. #129

tests/test_validation_errors/unsynth_reset2.rdl

@@ -0,0 +1,13 @@
+addrmap top {
+    reg {
+        field {
+            sw=rw; hw=na;
+        } f1;
+
+        field {
+            sw=rw; hw=na;
+        } f2;
+
+        f1->reset = f2;
+    } x;
+};