[libc++][Android] Allow testing libc++ with clang-r536225 (#116149) The Android clang-r536225 compiler identifies as Clang 19, but it is based on commit fc57f88f007497a4ead0ec8607ac66e1847b02d6, which predates the official LLVM 19.0.0 release. Some tests need fixes: * The sized delete tests fail because clang-r536225 leaves sized deallocation off by default. * std::array<T[0]> is true when this Android Clang version is used with a trunk libc++, but we expect it to be false in the test. In practice, Clang and libc++ usually come from the same commit on Android.
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