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=== tests/cases/compiler/assignmentCompatFunctionsWithOptionalArgs.ts ===
function foo(x: { id: number; name?: string; }): void;
>foo : (x: { id: number; name?: string; }) => void
>x : { id: number; name?: string; }
>id : number
>name : string
foo({ id: 1234 }); // Ok
>foo({ id: 1234 }) : void
>foo : (x: { id: number; name?: string; }) => void
>{ id: 1234 } : { id: number; }
>id : number
>1234 : 1234
foo({ id: 1234, name: "hello" }); // Ok
>foo({ id: 1234, name: "hello" }) : void
>foo : (x: { id: number; name?: string; }) => void
>{ id: 1234, name: "hello" } : { id: number; name: string; }
>id : number
>1234 : 1234
>name : string
>"hello" : "hello"
foo({ id: 1234, name: false }); // Error, name of wrong type
>foo({ id: 1234, name: false }) : void
>foo : (x: { id: number; name?: string; }) => void
>{ id: 1234, name: false } : { id: number; name: boolean; }
>id : number
>1234 : 1234
>name : boolean
>false : false
foo({ name: "hello" }); // Error, id required but missing
>foo({ name: "hello" }) : void
>foo : (x: { id: number; name?: string; }) => void
>{ name: "hello" } : { name: string; }
>name : string
>"hello" : "hello"
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