39348762: XCUITest crashes in -[XCElementSnapshot(Hitpoint) hitPoint:] with EXC_BAD_ACCESS

[openradar-mirror]

Description

Summary:
Calling -[XCUIElement tap] crashes test runner

Steps to Reproduce:
Executed UI tests from attached demo project either from Xcode or from the command line.

Expected Results:
Tapping works, test runner does not crash

Actual Results:
Test runner crashes, the button is not tapped

Version/Build:
Xcode 9.3 (9E145) and Xcode 9.4 (9Q1004a)

Configuration:
macOS 10.13.4 (17E199)
iOS Simulator, iPhone 6
iOS 11.3 - OK
iOS 11.2 - Crashes
iOS 11.1 - Crashes
iOS 11.0.1 - Crashes
iOS 10.3.1 - OK
iOS 10.2 - OK
iOS 10.0 - OK
iOS 9.3 - OK
iOS 9.0 - Fails to start

Product Version: Xcode 9.3 (9E145)
Created: 2018-04-24T08:25:51.564480
Originated: 2018-04-11T00:00:00
Open Radar Link: http://www.openradar.me/39348762