fix errant reordering on cs/ps alias idents

src/Convert/Package.hs

@@ -656,12 +656,8 @@ traverseTypeIdentsM identMapper = fullMapper
         fullMapper = typeMapper
             >=> traverseTypeExprsM (traverseExprIdentsM identMapper)
             >=> traverseSinglyNestedTypesM fullMapper
-        typeMapper (Alias       x t) = aliasHelper (Alias      ) x t
+        typeMapper (Alias x t) = identMapper x >>= return . flip Alias t
-        typeMapper (PSAlias p   x t) = aliasHelper (PSAlias p  ) x t
-        typeMapper (CSAlias c p x t) = aliasHelper (CSAlias c p) x t
         typeMapper other = return other
-        aliasHelper constructor x t =
-            identMapper x >>= \x' -> return $ constructor x' t
 
 -- visits all identifiers in an LHS
 traverseLHSIdentsM :: Monad m => MapperM m Identifier -> MapperM m LHS

test/basic/import_no_reorder.sv

@@ -0,0 +1,20 @@
+package P;
+    typedef logic T;
+endpackage
+
+package Q;
+    typedef logic [7:0] U;
+endpackage
+
+`define DUMP(x) initial $display(`"x: %0d %b`", $bits(x), x);
+
+module top;
+    P::T a;
+    import Q::U;
+    typedef U T;
+    U b;
+    T c;
+    `DUMP(a)
+    `DUMP(b)
+    `DUMP(c)
+endmodule

test/basic/import_no_reorder.v

@@ -0,0 +1,8 @@
+`define DUMP(x) initial $display(`"x: %0d %b`", $bits(x), x);
+module top;
+    wire a;
+    wire [7:0] b, c;
+    `DUMP(a)
+    `DUMP(b)
+    `DUMP(c)
+endmodule