Drops function-less frames from PhantomJS 1.x stacks

[benvinegar]

Discovered while working on unit tests for #582

Given this stack trace (from our unit tests):

  Error: foo
    at file:///Users/benvinegar/Projects/raven-js/build/raven.test.js:878
    at foo (file:///Users/benvinegar/Projects/raven-js/build/raven.test.js:4283)
    at file:///Users/benvinegar/Projects/raven-js/build/raven.test.js:4287
    at callFn (file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4452)
    at file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4445
    at file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4847
    at file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4938
    at next (file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4772)
    at file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4782
    at next (file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4720)
    at file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:4749
    at timeslice (file:///Users/benvinegar/Projects/raven-js/node_modules/mocha/mocha.js:6015)

Every frame without parents/function names is dropped entirely.

[benvinegar]

Laugh – wrong project, but this was fixed anyways in getsentry/sentry-javascript#642