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.

show more ...