tests/cases/conformance/types/union/unionTypeReadonly.ts(17,6): error TS2540: Cannot assign to 'value' because it is a read-only property.
tests/cases/conformance/types/union/unionTypeReadonly.ts(19,11): error TS2540: Cannot assign to 'value' because it is a read-only property.
tests/cases/conformance/types/union/unionTypeReadonly.ts(21,9): error TS2540: Cannot assign to 'value' because it is a read-only property.
tests/cases/conformance/types/union/unionTypeReadonly.ts(23,15): error TS2540: Cannot assign to 'value' because it is a read-only property.
tests/cases/conformance/types/union/unionTypeReadonly.ts(25,15): error TS2339: Property 'value' does not exist on type 'Base | DifferentName'.
  Property 'value' does not exist on type 'DifferentName'.


==== tests/cases/conformance/types/union/unionTypeReadonly.ts (5 errors) ====
    interface Base {
        readonly value: number;
    }
    interface Identical {
        readonly value: number;
    }
    interface Mutable {
        value: number;
    }
    interface DifferentType {
        readonly value: string;
    }
    interface DifferentName {
        readonly other: number;
    }
    let base: Base;
    base.value = 12 // error, lhs can't be a readonly property
         ~~~~~
!!! error TS2540: Cannot assign to 'value' because it is a read-only property.
    let identical: Base | Identical;
    identical.value = 12; // error, lhs can't be a readonly property
              ~~~~~
!!! error TS2540: Cannot assign to 'value' because it is a read-only property.
    let mutable: Base | Mutable;
    mutable.value = 12; // error, lhs can't be a readonly property
            ~~~~~
!!! error TS2540: Cannot assign to 'value' because it is a read-only property.
    let differentType: Base | DifferentType;
    differentType.value = 12; // error, lhs can't be a readonly property
                  ~~~~~
!!! error TS2540: Cannot assign to 'value' because it is a read-only property.
    let differentName: Base | DifferentName;
    differentName.value = 12; // error, property 'value' doesn't exist
                  ~~~~~
!!! error TS2339: Property 'value' does not exist on type 'Base | DifferentName'.
!!! error TS2339:   Property 'value' does not exist on type 'DifferentName'.
    
    