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tests/cases/compiler/propertyParameterWithQuestionMark.ts(9,5): error TS2322: Type 'C' is not assignable to type '{ x: any; }'.
Property 'x' is optional in type 'C' but required in type '{ x: any; }'.
==== tests/cases/compiler/propertyParameterWithQuestionMark.ts (1 errors) ====
class C {
constructor(public x?) { }
}
// x should be an optional property
var v: C = {}; // Should succeed
var v2: { x? }
v = v2; // Should succeed
var v3: { x } = new C; // Should fail
~~
!!! error TS2322: Type 'C' is not assignable to type '{ x: any; }'.
!!! error TS2322: Property 'x' is optional in type 'C' but required in type '{ x: any; }'.
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