Remove `MDTupleTypedArrayWrapper::operator MDTuple*()`, since it causes ambiguity (at least in some [1] compilers [2]) when using indexes to `MDTupleTypedArrayWrapper::operator[](unsigned)` that are convertible to (but not the same as) `unsigned`. [1]: http://lab.llvm.org:8011/builders/sanitizer-windows/builds/2308 [2]: http://lab.llvm.org:8011/builders/clang-cmake-mips/builds/4442 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234326 91177308-0d34-0410-b5e6-96231b3b80d8