[tor-bugs] #25705 [Core Tor/Tor]: Refactor circuit_build_failed to separate build vs path failures

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#25705: Refactor circuit_build_failed to separate build vs path failures
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     Reporter:  mikeperry     |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:  #25546
       Points:                |   Reviewer:
      Sponsor:  SponsorV-can  |
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 We should not give up on the network, our TLS conn, or our guard in the
 event of path failures (which can happen if we're low on mds, and/or if
 the user set a bunch of path-restricting torrc options).

 I think this might want to be a backport. It should also handle #25347.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25705>
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