This reverts commit b2909a245a.
This resubmits the following patches:
1. Use Xcode instruments to list devices (#10801)
Eliminates the dependency on idevice_id from libimobiledevice. Instead,
uses Xcode built-in functionality.
2. Make device discovery asynchronous (#10803)
Migrates DeviceDiscovery.devices and all device-specific lookup to be
asynchronous.
* Revert "Make device discovery asynchronous (#10803)"
This reverts commit 972be9c8b4.
* Revert "Use Xcode instruments to list devices (#10801)"
This reverts commit 37bb5f1300.
This is to resolve a failure that looks related to a bad install of Xcode 8.0
on our build bots and should be reinstated when the infra issue is diagnosed
and resolved.
Instruments worked well when this was originally landed, and on the
following commit, but started failing two commits after this originally
landed. Manual invocation of instruments on the build host currently
results in:
```
dyld: Library not loaded: @rpath/InstrumentsAnalysisCore.framework/Versions/A/InstrumentsAnalysisCore
Referenced from: /Applications/Xcode8.0.app/Contents/Developer/usr/bin/instruments
Reason: image not found
Abort trap: 6
```
It appears the /Applications/Xcode8.0.app/Contents/Applications
directory (which contains Instruments) is missing on the host.
Moves all remaining calls to tools that are part of the libimobiledevice
suite of tools to the IMobileDevice class. This allows for better
tracking of this dependency, and easier mocking in tests.
Extract out IMobileDevice class, move class to idevice_id, ideviceinfo
(and eventually other libimobiledevice tools such as iproxy) behind this
interface.
Add tests for the case where libimobiledevice is not installed, the case
where it returns no devices, and the case where it returns device IDs.
