fix: jcpan -t LWP::UserAgent::Mockable

[fglock]

Summary

Fixes three independent bugs surfaced by jcpan -t LWP::UserAgent::Mockable. After the fix, all 73 tests across the 14 test files pass.

1. IO::Socket::INET with Timeout always failed (EIO)

SocketIO.connect() was auto-binding the local NIO socket to the target's IP address, which fails with BindException: Can't assign requested address for any remote host — surfacing as a bogus Input/output error ($! = EIO). Now binds to the wildcard address (0.0.0.0:0) instead, best-effort.

2. Storable::dclone died on objects whose package inherits AUTOLOAD

InheritanceResolver.findMethodInHierarchy falls back to AUTOLOAD when a method isn't found, but Storable's STORABLE_freeze / STORABLE_thaw lookup must NOT — Perl's real Storable uses gv_fetchmethod_autoload(..., FALSE). With AUTOLOAD fallback enabled, our code tried to invoke HTTP::Message::AUTOLOAD as STORABLE_freeze and crashed with Can't locate object method "" via package "".

Added a checkAutoload parameter (with a separate cache slot) to findMethodInHierarchy and used it for all STORABLE_freeze / STORABLE_thaw lookups.

3. Storable::retrieve broke URI overload globally and built the wrong reference kind for STORABLE_thaw

Two sub-issues:

• The SX_HOOK and !!perl/freeze: records didn't encode the original reference type, so on read we always built a hash ref. URI's STORABLE_thaw does $$self = $str and croaks with Not a SCALAR reference. Now encode the ref type (S/A/H byte for binary; freezeS: / freezeA: / freeze: tag prefix for YAML); the reader builds a scalar / array / hash ref accordingly. The plain freeze: tag is still accepted on read for backward compatibility.

• Blessing into a class before it's loaded allocates a positive (non-overloaded) blessId. That id is cached forever, so even after the class is later loaded with use overload, every subsequent URI->new(...) skipped overload dispatch — strings printed as URI::http=SCALAR(0x...) and eq comparisons failed. On retrieve, best-effort require the class before bless so its overload registers first.

Test plan

• jcpan -t LWP::UserAgent::Mockable — Result: PASS (was FAIL — 7 of 14 test files dubious / non-zero exit).
• make (full unit test suite) — green.
• Configuration.java updated by injectGitInfo.