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=== tests/cases/compiler/unionExcessPropsWithPartialMember.ts ===
interface A {
>A : Symbol(A, Decl(unionExcessPropsWithPartialMember.ts, 0, 0))
unused?: string;
>unused : Symbol(A.unused, Decl(unionExcessPropsWithPartialMember.ts, 0, 13))
x: string;
>x : Symbol(A.x, Decl(unionExcessPropsWithPartialMember.ts, 1, 20))
}
interface B {
>B : Symbol(B, Decl(unionExcessPropsWithPartialMember.ts, 3, 1))
x: string;
>x : Symbol(B.x, Decl(unionExcessPropsWithPartialMember.ts, 5, 13))
y: string;
>y : Symbol(B.y, Decl(unionExcessPropsWithPartialMember.ts, 6, 14))
}
declare var ab: A | B;
>ab : Symbol(ab, Decl(unionExcessPropsWithPartialMember.ts, 10, 11))
>A : Symbol(A, Decl(unionExcessPropsWithPartialMember.ts, 0, 0))
>B : Symbol(B, Decl(unionExcessPropsWithPartialMember.ts, 3, 1))
declare var a: A;
>a : Symbol(a, Decl(unionExcessPropsWithPartialMember.ts, 11, 11))
>A : Symbol(A, Decl(unionExcessPropsWithPartialMember.ts, 0, 0))
ab = {...a, y: (null as any as string | undefined)}; // Should be allowed, since `y` is missing on `A`
>ab : Symbol(ab, Decl(unionExcessPropsWithPartialMember.ts, 10, 11))
>a : Symbol(a, Decl(unionExcessPropsWithPartialMember.ts, 11, 11))
>y : Symbol(y, Decl(unionExcessPropsWithPartialMember.ts, 13, 11))
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