Convert exception during delayed autoload to fatal error

Same as with other exceptions during inheritance, convert those
thrown during delayed class loading into fatal errors. We can't

Convert exception during delayed autoload to fatal error

Same as with other exceptions during inheritance, convert those
thrown during delayed class loading into fatal errors. We can't
properly deal with such exceptions, as inheritance cannot be
gracefully aborted at this point.

Fixes oss-fuzz #39405.

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Bail on exception during delayed autoload

We shouldn't try to load further classes if one autoload throws.

This fixes oss-fuzz #38881, though I believe there are still two
deepe

Bail on exception during delayed autoload

We shouldn't try to load further classes if one autoload throws.

This fixes oss-fuzz #38881, though I believe there are still two
deeper issues here: 1) Why do we allow autoloading with an active
exception? 2) Exception save & restore should probably also save
and restore the exception opline.

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