==================test.js=============
function f(a1) {
  try{
    Error.stackTraceLimit = a1; 
    throw Error()
  }
  catch(e)
  {
    return e.stack;
  }
}
for (let i = 0; i < 2; i++) {
  print(f(i));
}
=====================================
Run args:
./jsc test.js

JSC prints two "undefined". V8 prints "undefined" and a stacktrace. 
The same problem is in Safari console.

Error.statckTraceLimit can not be modified correctly in LLInt.