[ios][tool] xcode_backend logging shouldn't rely on exitCode #174079
Description
We have this code:
flutter/packages/flutter_tools/bin/xcode_backend.dart
Lines 132 to 139 in 5483fef
We check exitCode of current process, not result.exitCode of the subprocess (e.g. plutil).
I think this check shouldn't be necessary, because if exitCode is not 0, then the current process is already terminated (xcode_backend never change its own exitCode without exiting the process).
It should be safe to just do
if (!verbose) {
// ...
}