Better workaround for Scilab name problem with 'Error'

Examples/test-suite/constructor_exception.i

@@ -1,20 +1,14 @@
 %module constructor_exception
 
-#ifdef SWIGSCILAB
 %inline %{
-#undef Error
-%}
-#endif
-
-%inline %{
-class Error {
+class MyError {
 };
 
 class SomeClass {
 public:
    SomeClass(int x) {
        if (x < 0) {
-           throw Error();
+           throw MyError();
        }
    }
 };
@@ -23,7 +17,7 @@ class Test {
   SomeClass o;
 public:
   Test(int x) try : o(x) { }
-  catch (Error &) {
+  catch (MyError &) {
   } 
   catch (int) {
   }