tree a2768593ef7b8977d9cacad5b95ae8812ec9ad88
parent dd08a0c178329ec16cb9e494e6880f3991708b93
author Douglas Gregor <dgregor@apple.com> 1367621923 +0000
committer Douglas Gregor <dgregor@apple.com> 1367621923 +0000

When building a module, forward diagnostics to the outer diagnostic consumer.

Previously, we would clone the current diagnostic consumer to produce
a new diagnostic consumer to use when building a module. The problem
here is that we end up losing diagnostics for important diagnostic
consumers, such as serialized diagnostics (where we'd end up with two
diagnostic consumers writing the same output file). With forwarding,
the diagnostics from all of the different modules being built get
forwarded to the one serialized-diagnostic consumer and are emitted in
a sane way.

Fixes <rdar://problem/13663996>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181067 91177308-0d34-0410-b5e6-96231b3b80d8