Use eval instead of exec_internal in compile-string to handle errors …

…properly

euslime/handler.py

@@ -309,7 +309,7 @@ def swank_compile_string_for_emacs(self, cmd_str, *args):
             assert isinstance(sexp, list)
         except AssertionError:
             raise Exception('Invalid s-expression in %s' % cmd_str)
-        self.euslisp.exec_internal(cmd_str)
+        list(self.euslisp.eval(cmd_str))
         if len(sexp) > 2:
             msg = dumps(sexp[:2] + [None], none_as='...')
         else: