template <typename T, typename Enable = void>struct IsFidlEnum
Defined at line 109 of file ../../zircon/system/ulib/sysmem-version/include/lib/sysmem-version/sysmem-version.h
The meaning of "fidl enum" here includes flexible enums, which are actually just final classes
with a single private scalar field after codegen, but the have an operator uint32_t() or
operator uint64_t() (the ones we care about here) so we detect that way (at least for now).