Example https://ci.chromium.org/buildbot/chromium.webkit/WebKit%20Win10/37494

Actual:
Tests the Timeline instrumentation for CompileScript event.

v8.compile Properties:
{
    data : {
        columnNumber : 0
        lineNumber : 0
        streamed : <boolean>
        url : 
    }
    endTime : <number>
    startTime : <number>
    type : "v8.compile"
}
Text details for v8.compile: undefined

Expected:
Tests the Timeline instrumentation for CompileScript event.

v8.compile Properties:
{
    data : {
        columnNumber : 0
        lineNumber : 0
        streamed : <boolean>
        url : 
    }
    endTime : <number>
    startTime : <number>
    type : "v8.compile"
}
Text details for v8.compile: undefined
v8.compile Properties:
{
    data : {
        columnNumber : 0
        lineNumber : 0
        streamed : <boolean>
        url : .../devtools/tracing/timeline-js/resources/timeline-script-tag-2.js
    }
    endTime : <number>
    startTime : <number>
    type : "v8.compile"
}
Text details for v8.compile: timeline-script-tag-2.js:1

Assigning to alph@chromium.org because of  Issue 850892