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=== tests/cases/compiler/typeGuardNarrowsIndexedAccessOfKnownProperty2.ts ===
const foo: { key?: number } = {};
>foo : Symbol(foo, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 5))
>key : Symbol(key, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 12))
const key = 'key' as const;
>key : Symbol(key, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 1, 5))
>const : Symbol(const)
if (foo[key]) {
>foo : Symbol(foo, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 5))
>key : Symbol(key, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 1, 5))
foo[key]; // number
>foo : Symbol(foo, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 5))
>key : Symbol(key, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 1, 5))
foo.key; // number
>foo.key : Symbol(key, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 12))
>foo : Symbol(foo, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 5))
>key : Symbol(key, Decl(typeGuardNarrowsIndexedAccessOfKnownProperty2.ts, 0, 12))
}
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