keep_quoted_strict: {
    options = {
        evaluate: true,
        properties: true,
    },
    mangle = {
        properties: {
            keep_quoted: "strict",
            reserved: ["propc", "propd"],
        },
    }
    input: {
        var a = {
            propa: 1,
            get propb() { return 2; },
            propc: 3,
            get propd() { return 4; },
        };
        var b = {
            "propa": 5,
            get "propb"() { return 6; },
            "propc": 7,
            get "propd"() { return 8; },
        };
        var c = {};
        Object.defineProperty(c, "propa", {"value": 9});
        Object.defineProperty(c, "propc", {"value": 10});
        console.log(a.propa, a.propb, a.propc, a["propc"], a.propd, a["propd"]);
        console.log(b["propa"], b["propb"], b.propc, b["propc"], b.propd, b["propd"]);
        console.log(c.propa, c["propc"]);
    }
    expect: {
        var a = {
            r: 1,
            get p() {
                return 2;
            },
            propc: 3,
            get propd() {
                return 4;
            }
        };
        var b = {
            propa: 5,
            get propb() {
                return 6;
            },
            propc: 7,
            get propd() {
                return 8;
            }
        };
        var c = {};
        Object.defineProperty(c, "r", {
            value: 9
        });
        Object.defineProperty(c, "propc", {
            value: 10
        });
        console.log(a.r, a.p, a.propc, a.propc, a.propd, a.propd);
        console.log(b.propa, b.propb, b.propc, b.propc, b.propd, b.propd);
        console.log(c.r, c.propc);
    }
    expect_stdout: [
        "1 2 3 3 4 4",
        "5 6 7 7 8 8",
        "9 10",
    ]
}