Using enable_if/disable_if as a return type has a negative impact on
binary size compared to use a boost::true/false_type as a method parameter.

For comparison the WorkletTests_TBB sees a 6-7% reduction in binary size when
compiled with O3.

Origin WorkletTests_TBB size details:
__TEXT  __DATA  __OBJC  others  dec hex
2363392 49152 0 4297793536  4300206080  1004ff000

Updated WorkletTests_TBB size details:
__TEXT  __DATA  __OBJC  others  dec hex
2215936 49152 0 4297568256  4299833344  1004a4000