David Blaikie 5ebc54d9ea DIEHashing: Provide an assert for unreachable functionality regarding friends. ...

Since (as of r190716) Clang no longer emits debug info for C++ friend
declarations (and it seems GCC never has/does, which was the motivation
for the Clang change), there's no actual reachable case for implementing
the part of DWARF 4, Section 7.27 part 5 that pertains to friends.

Leave an assert here so that if/when we do have a client producing
friends and using type units, we can fill in the gap and add appropriate
(unit and feature) tests.

llvm-svn: 193193

2013-10-22 20:28:55 +00:00

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