tenfourfox/devtools/client/debugger/test/mochitest/code_script-eval.js

var bar;

function evalSource() {
  eval('bar = function() {\nvar x = 5;\n}');
}

function evalSourceWithSourceURL() {
  eval('bar = function() {\nvar x = 6;\n} //# sourceURL=bar.js');
}

function evalSourceWithDebugger() {
  eval('bar = function() {\nvar x = 7;\ndebugger; }\n bar();');
}