a[""];
a["b" + 1];
a["c" + "d"];
a["c" + "d"];
a = {
	["c" + "d"]: d
};
a = {
	"": d
};
a["00"]
a[`0`]
a["a-b"]
a[`a-b`]
a[`time range`];
a[`time${range}`];
class C { a = 0 }
class C { a(){} }
class C { get a(){} }
class C { set a(x){} }