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=== tests/cases/conformance/expressions/binaryOperators/additionOperator/additionOperatorWithOnlyNullValueOrUndefinedValue.ts ===
// bug 819721
var r1 = null + null;
>r1 : Symbol(r1, Decl(additionOperatorWithOnlyNullValueOrUndefinedValue.ts, 1, 3))
var r2 = null + undefined;
>r2 : Symbol(r2, Decl(additionOperatorWithOnlyNullValueOrUndefinedValue.ts, 2, 3))
>undefined : Symbol(undefined)
var r3 = undefined + null;
>r3 : Symbol(r3, Decl(additionOperatorWithOnlyNullValueOrUndefinedValue.ts, 3, 3))
>undefined : Symbol(undefined)
var r4 = undefined + undefined;
>r4 : Symbol(r4, Decl(additionOperatorWithOnlyNullValueOrUndefinedValue.ts, 4, 3))
>undefined : Symbol(undefined)
>undefined : Symbol(undefined)
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