title: golang breakpoints not work in intellij idea 2016.1.1
body: <p>I was debugging a GoLang program. I set break points and run the debugger. But the break points only works the first time I run the debugger and failed in the second, the third, and all following debugging whatever I do. I cancelled them and reset them, I close the debugging window and open a new one, I change the settings in the "Breakpoints" tool window. All these didn't work at all.
  What's the problem?</p>