ExceptionHandling Constants

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let NSStackTraceKey: String

The key for fetching the stack trace (an NSString object) in the userInfo dictionary of the NSException object passed into one of the delegate methods described in Logging and handling exceptions.

let NSUncaughtRuntimeErrorException: String

Identifies an Objective-C runtime error.

let NSUncaughtSystemExceptionException: String

Identifies an uncaught system exception.