Verify that breakpoints are moved appropriately in case of page reload.
Running: addFileSystem
Running: addNetworkFooJS
Running: setBreakpointInFileSystemUISourceCode
http://127.0.0.1:8000/devtools/persistence/resources/foo.js:2
Running: reloadPageAndDumpBreakpoints
Page reloaded.
file:///var/www/devtools/persistence/resources/foo.js:0