Reject invalid integer constants in unevaluated preprocessor operands (#134884)

Clang was previously accepting invalid code like:
```
  #if 1 ? 1 : 999999999999999999999
  #endif
```
because the integer constant (which is too large to fit into any
standard or extended integer type) was in an unevaluated branch of the
conditional operator. Similar invalid code involving || or && was also
accepted and is now rejected.

Fixes #134658
3 files changed
tree: 4453a2eeda34b8869e3d90ce762657e6513c0f3f
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libunwind/
  16. lld/
  17. lldb/
  18. llvm/
  19. llvm-libgcc/
  20. mlir/
  21. offload/
  22. openmp/
  23. polly/
  24. pstl/
  25. runtimes/
  26. third-party/
  27. utils/
  28. .clang-format
  29. .clang-tidy
  30. .git-blame-ignore-revs
  31. .gitattributes
  32. .gitignore
  33. .mailmap
  34. CODE_OF_CONDUCT.md
  35. CONTRIBUTING.md
  36. LICENSE.TXT
  37. pyproject.toml
  38. README.md
  39. SECURITY.md
README.md

The LLVM Compiler Infrastructure

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Welcome to the LLVM project!

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