swift

f9a42ece - [cxx-interop] Copy bridging header to same directory as other headers (#72201)

[cxx-interop] Copy bridging header to same directory as other headers (#72201) The `bridging` header for C++ interop was calculating an include directory using `CMAKE_BINARY_DIR` and `CMAKE_CFG_INTDIR` while the rest of the headers consistently use `CMAKE_CURRENT_BINARY_DIR` and no `CMAKE_CFG_INTDIR`. In some configurations of CMake (for example when using Swift as an external project of LLVM and building an unified toolchain), this means that the `brigding` header will end up in a different directory than the rest of the headers, which complicates testing. The changes in this commit reuses `SWIFT_INCLUDE_DIR` to keep consistency with the rest of the headers. Any build started by `build-script` should not notice the difference.