Clear recorded errors before executing shutdown functions

Recorded errors may be attached to the wrong cached script when a fatal error
occurs during recording. This happens because the

Clear recorded errors before executing shutdown functions

Recorded errors may be attached to the wrong cached script when a fatal error
occurs during recording. This happens because the fatal error will cause a
bailout, which may prevent the recorded errors from being freed. If an other
script is compiled after bailout, or if a class is linked after bailout, the
recorded errors will be attached to it.

This change fixes this by freeing recorded errors before executing shutdown
functions.

Fixes GH-8063

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