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=== tests/cases/conformance/expressions/nullishCoalescingOperator/nullishCoalescingOperator9.ts ===
declare let f: null | ((x: string) => void);
>f : Symbol(f, Decl(nullishCoalescingOperator9.ts, 0, 11))
>x : Symbol(x, Decl(nullishCoalescingOperator9.ts, 0, 24))
let g = f || (abc => { void abc.toLowerCase() })
>g : Symbol(g, Decl(nullishCoalescingOperator9.ts, 2, 3))
>f : Symbol(f, Decl(nullishCoalescingOperator9.ts, 0, 11))
>abc : Symbol(abc, Decl(nullishCoalescingOperator9.ts, 2, 14))
>abc.toLowerCase : Symbol(String.toLowerCase, Decl(lib.es5.d.ts, --, --))
>abc : Symbol(abc, Decl(nullishCoalescingOperator9.ts, 2, 14))
>toLowerCase : Symbol(String.toLowerCase, Decl(lib.es5.d.ts, --, --))
let gg = f ?? (abc => { void abc.toLowerCase() })
>gg : Symbol(gg, Decl(nullishCoalescingOperator9.ts, 3, 3))
>f : Symbol(f, Decl(nullishCoalescingOperator9.ts, 0, 11))
>abc : Symbol(abc, Decl(nullishCoalescingOperator9.ts, 3, 15))
>abc.toLowerCase : Symbol(String.toLowerCase, Decl(lib.es5.d.ts, --, --))
>abc : Symbol(abc, Decl(nullishCoalescingOperator9.ts, 3, 15))
>toLowerCase : Symbol(String.toLowerCase, Decl(lib.es5.d.ts, --, --))
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