Update Sema::DiagRuntimeBehavior() to take an optional Stmt* to indicate the code the diagnostic is associated with.

This Stmt* is unused, but we will use it shortly for pruning diagnostics associated
with unreachable code.

llvm-svn: 126286
4 files changed
tree: 3a514afa78d269e2a00b0a7eba8bb6be9eba9334
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/