[DevTools] enable async stacks by default

third_party/WebKit/LayoutTests/inspector/console/console-uncaught-promise-expected.txt

 CONSOLE ERROR: line 23: Uncaught (in promise) Error: err1
 CONSOLE ERROR: line 44: Uncaught (in promise) Error: err2
 CONSOLE ERROR: line 62: Uncaught (in promise) NotFoundError: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.
 CONSOLE ERROR: line 68: Uncaught (in promise) 42
 CONSOLE ERROR: line 73: Uncaught (in promise) 1e+100
 CONSOLE ERROR: line 78: Uncaught (in promise) foo
 CONSOLE ERROR: line 83: Uncaught (in promise) #<Object>
 CONSOLE ERROR: line 88: Uncaught (in promise) undefined
 CONSOLE ERROR: line 93: Uncaught (in promise) SecurityError: Failed to register a ServiceWorker: The URL protocol of the current origin ('') is not supported.
 Tests that uncaught promise rejections are logged into console.
 
 console-uncaught-promise.html:23 Uncaught (in promise) Error: err1
 promiseTest1 @ console-uncaught-promise.html:23
 timeout @ console-uncaught-promise.html:16
+Promise rejected (async)
+promiseTest1 @ console-uncaught-promise.html:23
+timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:44 Uncaught (in promise) Error: err2
 promiseTest2 @ console-uncaught-promise.html:44
 timeout @ console-uncaught-promise.html:16
+Promise rejected (async)
+promiseTest2 @ console-uncaught-promise.html:44
+timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:62 Uncaught (in promise) DOMException: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.
 throwDOMException @ console-uncaught-promise.html:62
 catcher @ console-uncaught-promise.html:54
+Promise rejected (async)
+promiseTest3 @ console-uncaught-promise.html:56
+timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:68 Uncaught (in promise) 42
 promiseTest4 @ console-uncaught-promise.html:68
 timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:73 Uncaught (in promise) 1e+100
 promiseTest5 @ console-uncaught-promise.html:73
 timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:78 Uncaught (in promise) foo
 promiseTest6 @ console-uncaught-promise.html:78
 timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:83 Uncaught (in promise) Object {foo: 42}
     foo: 42
     __proto__: Object
 promiseTest7 @ console-uncaught-promise.html:83
 timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:88 Uncaught (in promise) undefined
 promiseTest8 @ console-uncaught-promise.html:88
 timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1
 console-uncaught-promise.html:93 Uncaught (in promise) DOMException: Failed to register a ServiceWorker: The URL protocol of the current origin ('file://') is not supported.
 promiseTest9 @ console-uncaught-promise.html:93
 timeout @ console-uncaught-promise.html:16
+Promise (async)
+promiseTest9 @ console-uncaught-promise.html:93
+timeout @ console-uncaught-promise.html:16
+setTimeout (async)
+runNextPromiseTest @ console-uncaught-promise.html:15
+(anonymous) @ VM:1