mbed-drivers/mbed.h (or mbed-drivers/AnyAPI.h) should include these definitions indirectly. They are actually defined in the generated mbed-hal/[chip-]pins.array files which are included from this header.
To be clear is the build succeeding – it’s just the code-completion that’s failing? Or is the build also failing?
OK really sounds like I should install Eclipse in my windows VM to test this thoroughly 