hoist_props does not work with object/array literals

[kzc]

Bug report or feature request?
feature

ES5 or ES6+ input?
ES5

Uglify version (uglifyjs -V)
uglify-js 3.1.10

JavaScript input

Split out the ES5 test cases from #2503 (comment)

Object/Array literals ought to work in hoist_props as numbers already do:

$ echo 'var o = { a:1, f:function(x){console.log(x)} }; o.f(o.a);' | bin/uglifyjs --toplevel -c hoist_props,passes=9 -b
console.log(1);

$ echo 'var o = { a:[1], f:function(x){console.log(x)} }; o.f(o.a);' | bin/uglifyjs --toplevel -c hoist_props,passes=9 -b
var o = {
    a: [ 1 ],
    f: function(x) {
        console.log(x);
    }
};

o.f(o.a);

$ echo 'var o = { a:{b:2}, f:function(x){console.log(x)} }; o.f(o.a);' | bin/uglifyjs --toplevel -c hoist_props,passes=9 -b
var o = {
    a: {
        b: 2
    },
    f: function(x) {
        console.log(x);
    }
};

o.f(o.a);