Do not use 'Throwable.getMessage'.

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/SREModuleBuiltins.java

@@ -265,10 +265,10 @@ Object call(TruffleObject callable, Object[] arguments,
                 return ForeignAccess.sendExecute(invokeNode, callable, arguments);
             } catch (ArityException | UnsupportedTypeException | UnsupportedMessageException e) {
                 typeError.enter();
-                throw raise(TypeError, e.getMessage());
+                throw raise(TypeError, "%s", e);
             } catch (RuntimeException e) {
                 runtimeError.enter();
-                throw raise(RuntimeError, e.getMessage());
+                throw raise(RuntimeError, "%s", e);
             }
         }