Permit cross-CU references

So far dw_offset_t was global for the whole SymbolFileDWARF but with
.debug_types the same dw_offset_t may mean two different things depending on
its section (=CU). So references now return whole new referenced DWARFDIE
instead of just dw_offset_t.

This means that some functions have to now handle 16 bytes instead of 8 bytes
but I do not see that anywhere performance critical.

Differential Revision:

llvm-svn: 360795
13 files changed
tree: 8fd47540d88bcf31e8fc9283b6b85e3ff1c9549e
  1. .arcconfig
  2. .clang-format
  3. .clang-tidy
  4. .gitignore
  6. clang-tools-extra/
  7. clang/
  8. compiler-rt/
  9. debuginfo-tests/
  10. libclc/
  11. libcxx/
  12. libcxxabi/
  13. libunwind/
  14. lld/
  15. lldb/
  16. llgo/
  17. llvm/
  18. openmp/
  19. parallel-libs/
  20. polly/
  21. pstl/

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