Consolidate the repeated `var x = default; catchException({ x = expr }); if let m {
NSLog("..._IGNORED_EXCEPTION=%@", m); return default }; return x` shape used around
exception-prone XCUITest queries into one generic helper (RunnerTests+Exceptions.swift):
func safely<T>(_ tag:, _ fallback:, _ block:) -> T
func safely<T>(_ tag:, _ block: () -> T?) -> T? // nil-default convenience
11 uniform sites adopt it: SystemModal (4), Snapshot (2), TextEntry (2), Interaction (3).
Each drops from ~7-12 lines to 1-3. The NSLog format is preserved byte-for-byte via the tag arg
(tag "MODAL_QUERY" -> "AGENT_DEVICE_RUNNER_MODAL_QUERY_IGNORED_EXCEPTION=%@"), so the
silently-logged-and-continued path keeps its searchable format and now has a single place to add
per-tag exception telemetry.
Left inline by design (not the uniform pattern): the silent `_ = catchException` KVC reads
(elementHasFocus, snapshotHasFocus), the throw-on-AX snapshot path, executeOnMainSafely's
retry-driving catch, and the bespoke pressKeyboardReturn fallback / performElementTap branches
whose result depends on the exception message.
Behavior-preserving: same defaults, same log output, same returned values. catchException is
non-escaping, so the inout capture in safeIsActionableCandidate is preserved.
Verified: xcodebuild build-for-testing -> TEST BUILD SUCCEEDED.