{N} app crashes when inspecting SearchBar with VSCode debugger

[Dimitar Tachev]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 5.2.0
• Cross-platform modules: 5.2.0
• iOS Runtime: 5.2.0

To Reproduce

1. tns create jsApp --js && cd jsApp && code .
2. Replace the <Button with a <SearchBar.
3. Replace your onTap method with the one below:

viewModel.onTap = (args) => {
    const sb = args.object;
    const native = sb.nativeView;
    console.log(native);
};

4. Set a breakpoint inside the above-mentioned method.
5. Start a simulator e.g. iPhone X with iOS 12.1.
6. Click Launch on iOS from VSCode.
7. Try to inspect the nativeView of the SearchBar.
8. The VSCode debugging will crash and the app will freeze.

[Martin Bektchiev]

The reason for the issue is that optional unimplemented methods were returned as supported by the JS wrapper object.
It lead to crashes only on Simulator because of #1044, on real devices it only logs errors when the VS Code debugger tries to read their values:

-[UISearchBarImpl collisionBoundingPath]: unrecognized selector sent to instance 0x106142820

-[UISearchBarImpl collisionBoundsType]: unrecognized selector sent to instance 0x106142820

-[UISearchBarImpl coordinateSpace]: unrecognized selector sent to instance 0x106142820