Re-introduce diagnostic caching in BugReporter that was originally added in
r82198 and then reverted. This is an intermediate solution, as diagnostic
caching should not rely on static variables.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82301 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed