Represent C macros in clang as inline functions in debug information

[jrmuizel]

This would allow proper backtraces through macros like swift has. See https://www.youtube.com/watch?v=WOkoAHTbsbM&t=452s for an intro for how it's done in Swift.

[jrmuizel]

cc @adrian-prantl

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: Jeff Muizelaar (jrmuizel)

This would allow proper backtraces through macros like swift has. See https://www.youtube.com/watch?v=WOkoAHTbsbM&t=452s for an intro for how it's done in Swift.

[llvmbot]

@llvm/issue-subscribers-debuginfo

Author: Jeff Muizelaar (jrmuizel)

This would allow proper backtraces through macros like swift has. See https://www.youtube.com/watch?v=WOkoAHTbsbM&t=452s for an intro for how it's done in Swift.