This may reduce the quality of type information available.

warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.
方法自己调用了自己：

set_Method:(NSString *)text
{
     [self set_Method:text];
}

这里只是举个最简单的例子，N个函数多次相互调用有可能自己调用到自己，如A调用B，B调用C，C调用D，D调用E，E又调用A