Added Methods for ObjectOpResult (#337) #448

Job	Run time
linux (--features debugmozjs)	7m 12s
linux	2m 3s
mac (--features debugmozjs)	13m 23s
mac	6m 35s
windows (--features debugmozjs)	15m 39s
windows (--features debugmozjs, aarch64-uwp-windows-msvc)	10m 41s
windows (--features debugmozjs, x86_64-uwp-windows-msvc)	15m 10s
windows	11m 0s
windows (aarch64-uwp-windows-msvc)	13m 6s
windows (x86_64-uwp-windows-msvc)	12m 16s
Result	0s
	1h 47m 5s

Provide feedback