8065804: JEP 171: Clarifications/corrections for fence intrinsics
Reviewed-by: dholmes, shade, dl, psandoz
x instanceof f: true
x instanceof b: true
y instanceof f: true
y instanceof b: true
Changing prototype
x instanceof f: false
x instanceof b: false
y instanceof f: false
y instanceof b: false
Bound function prototype
f.hasOwnProperty('prototype'): true
b.hasOwnProperty('prototype'): false