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=== tests/cases/compiler/contextualTypingOfObjectLiterals.ts ===
var obj1: { [x: string]: string; };
>obj1 : { [x: string]: string; }
>x : string
var obj2 = {x: ""};
>obj2 : { x: string; }
>{x: ""} : { x: string; }
>x : string
>"" : ""
obj1 = {}; // Ok
>obj1 = {} : {}
>obj1 : { [x: string]: string; }
>{} : {}
obj1 = obj2; // Error - indexer doesn't match
>obj1 = obj2 : { x: string; }
>obj1 : { [x: string]: string; }
>obj2 : { x: string; }
function f(x: { [s: string]: string }) { }
>f : (x: { [s: string]: string; }) => void
>x : { [s: string]: string; }
>s : string
f({}); // Ok
>f({}) : void
>f : (x: { [s: string]: string; }) => void
>{} : {}
f(obj1); // Ok
>f(obj1) : void
>f : (x: { [s: string]: string; }) => void
>obj1 : { [x: string]: string; }
f(obj2); // Error - indexer doesn't match
>f(obj2) : void
>f : (x: { [s: string]: string; }) => void
>obj2 : { x: string; }
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