add: frameLineNumberStack.shift(); 
context: function willLeaveCallFrame(sourceId, line){    if (line <= 0)        resume();    willExecuteStatement(sourceId, line, true);    if (!steppingStack)        steppingOver = false;    if (steppingOut && !steppingStack) {        steppingOut = false;        pauseOnNextStatement = true;    }    if ((steppingOver || steppingOut) && steppingStack >= 1)        steppingStack--;}
meta: 10664	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10664/b6240cae0d423a9cf7a0af3627a6daea070cb8e1/debugger.js/buggy/third_party/WebKit/WebKitTools/Drosera/debugger.js