fix(ios): unhandled native exceptions should show an error dialog

[jquick-axway]

JIRA:
https://jira.appcelerator.org/browse/TIMOB-28420

Summary:

• Native exceptions invoked by JS should show an error dialog with a trace like Android.
• Currently native exceptions like this are logged and then hard-crashes back to home screen..

---

Unhandled Native Exception Test:

1. Build and run the below on iOS.
2. Verify an exception dialog is shown. (Used to crash back to the home screen.)

Ti.Filesystem.openStream(0, false);

---

Unhandled JavaScript Exception Test:

1. Build and run the below on iOS.
2. Verify an exception dialog is shown.

Ti.uhOh();

[build]

	Fails
🚫	Tests have failed, see below for more information.

	Messages
📖	✊ The commits in this PR match our conventions! Feel free to Rebase and Merge this PR when ready.
📖	❌ 4 tests have failed There are 4 tests failing and 966 skipped out of 16212 total tests.
📖	💾 Here's the generated SDK zipfile.

Tests:

Classname	Name	Time	Error
android.emulator.Titanium.UI.View	"after all" hook for "rgba fallback" (5.0.2)	20.373	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)
android.emulator.Titanium.UI.View	"after each" hook for "getOrCreateView() should always return a View" (5.0.2)	10.361	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)
ios.iphone.Titanium.UI.WebView	basic authentication should work properly (14.4.0)	30.002	Error: Timeout of 30000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)
ios.macos.Titanium.UI.View	animate width/height from zero (10.15.5)	10.026	Error: Timeout of 10000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js)

Generated by 🚫 dangerJS against abc86d6

[sgtcoolguy]

LGTM

[hansemannn]

Same here, tested and working well! Already cherry picked for a new production release :-)

[lokeshchdhry]

FR Passed.