=== tests/cases/conformance/controlFlow/controlFlowIfStatement.ts ===
let x: string | number | boolean | RegExp;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))
>RegExp : Symbol(RegExp, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))

let cond: boolean;
>cond : Symbol(cond, Decl(controlFlowIfStatement.ts, 1, 3))

x = /a/;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))

if (x /* RegExp */, (x = true)) {
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))

    x; // boolean
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))

    x = "";
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))
}
else {
    x; // boolean
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))

    x = 42;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))
}
x; // string | number
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 0, 3))

function a() {
>a : Symbol(a, Decl(controlFlowIfStatement.ts, 12, 2))

    let x: string | number;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 15, 7))

    if (cond) {
>cond : Symbol(cond, Decl(controlFlowIfStatement.ts, 1, 3))

        x = 42;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 15, 7))
    }
    else {
        x = "";
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 15, 7))

        return;
    }
    x; // number
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 15, 7))
}
function b() {
>b : Symbol(b, Decl(controlFlowIfStatement.ts, 24, 1))

    let x: string | number;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 26, 7))

    if (cond) {
>cond : Symbol(cond, Decl(controlFlowIfStatement.ts, 1, 3))

        x = 42;
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 26, 7))

        throw "";
    }
    else {
        x = "";
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 26, 7))
    }
    x; // string
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 26, 7))
}
function c<T>(data: string | T): T {
>c : Symbol(c, Decl(controlFlowIfStatement.ts, 35, 1))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 36, 11))
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 36, 14))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 36, 11))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 36, 11))

    if (typeof data === 'string') {
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 36, 14))

        return JSON.parse(data);
>JSON.parse : Symbol(JSON.parse, Decl(lib.es5.d.ts, --, --))
>JSON : Symbol(JSON, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
>parse : Symbol(JSON.parse, Decl(lib.es5.d.ts, --, --))
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 36, 14))
    }
    else {
        return data;
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 36, 14))
    }
}
function d<T extends string>(data: string | T): never {
>d : Symbol(d, Decl(controlFlowIfStatement.ts, 43, 1))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 44, 11))
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 44, 29))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 44, 11))

    if (typeof data === 'string') {
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 44, 29))

        throw new Error('will always happen');
>Error : Symbol(Error, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
    }
    else {
        return data;
>data : Symbol(data, Decl(controlFlowIfStatement.ts, 44, 29))
    }
}

interface I<T> {
>I : Symbol(I, Decl(controlFlowIfStatement.ts, 51, 1))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 53, 12))

  p: T;
>p : Symbol(I.p, Decl(controlFlowIfStatement.ts, 53, 16))
>T : Symbol(T, Decl(controlFlowIfStatement.ts, 53, 12))
}
function e(x: I<"A" | "B">) {
>e : Symbol(e, Decl(controlFlowIfStatement.ts, 55, 1))
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 56, 11))
>I : Symbol(I, Decl(controlFlowIfStatement.ts, 51, 1))

    if (x.p === "A") {
>x.p : Symbol(I.p, Decl(controlFlowIfStatement.ts, 53, 16))
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 56, 11))
>p : Symbol(I.p, Decl(controlFlowIfStatement.ts, 53, 16))

        let a: "A" = (null as unknown as typeof x.p)
>a : Symbol(a, Decl(controlFlowIfStatement.ts, 58, 11))
>x.p : Symbol(I.p, Decl(controlFlowIfStatement.ts, 53, 16))
>x : Symbol(x, Decl(controlFlowIfStatement.ts, 56, 11))
>p : Symbol(I.p, Decl(controlFlowIfStatement.ts, 53, 16))
    }
}