shafik added a comment.
Herald added a reviewer: JDevlieghere.

We are going to move forward with this approach (after dealing with the 
multi-dimensional array case) temporarily. We are seeing crash bugs from this 
from users and we want to fix it while we explore the solution space more.

This PR has brought up a lot of great questions and I have spent some time 
looking various approaches to fixing this and while I believe I have a better 
understanding of the underlying problem there are some pieces I still need to 
understand better. Mainly how other `ExternalSource` implementations work. Do 
they ever end up in the situation where they have a record that is defined but 
not complete.

My impression at this point is that because expression parsing is not really 
generating well-formed translation units, we are relying on clang calling back 
into us to do name look-ups and then during that process LLDB and the 
ASTImporter needs to be clever enough to figure out when a record should be 
completed. Expression paring can end up in non-trivial cases where we have not 
seen the complete type yet (because we are being lazy) but we need it and we 
have not figured that out.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86660/new/

https://reviews.llvm.org/D86660

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