Breaking ChangeBugDomain: enumHelp Wanted
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説明
I ran into this for real while trying to fix a bug in the compiler. We disallow assigning one enum to another if you use the = operator. But we do not disallow it for any of the compound assignment operators. Nor do we disallow for bitwise operators. I think we should disallow all of them.
enum E { }
enum F { }
var e: E;
var f: F;
e = f; // Error
e |= f; // No error
var g = e | f; // No error, g is number