tests/cases/conformance/classes/classDeclarations/classImplementsMergedClassInterface.ts(9,7): error TS2420: Class 'C2' incorrectly implements interface 'C1'.
  Property 'x' is missing in type 'C2'.
tests/cases/conformance/classes/classDeclarations/classImplementsMergedClassInterface.ts(12,7): error TS2420: Class 'C3' incorrectly implements interface 'C1'.
  Property 'y' is missing in type 'C3'.
tests/cases/conformance/classes/classDeclarations/classImplementsMergedClassInterface.ts(16,7): error TS2420: Class 'C4' incorrectly implements interface 'C1'.
  Property 'x' is missing in type 'C4'.


==== tests/cases/conformance/classes/classDeclarations/classImplementsMergedClassInterface.ts (3 errors) ====
    declare class C1 {
        x : number;
    }
    
    interface C1 {
        y : number;
    }
    
    class C2 implements C1 { // error -- missing x
          ~~
!!! error TS2420: Class 'C2' incorrectly implements interface 'C1'.
!!! error TS2420:   Property 'x' is missing in type 'C2'.
    }
    
    class C3 implements C1 { // error -- missing y
          ~~
!!! error TS2420: Class 'C3' incorrectly implements interface 'C1'.
!!! error TS2420:   Property 'y' is missing in type 'C3'.
        x : number;
    }
    
    class C4 implements C1 { // error -- missing x
          ~~
!!! error TS2420: Class 'C4' incorrectly implements interface 'C1'.
!!! error TS2420:   Property 'x' is missing in type 'C4'.
        y : number;
    }
    
    class C5 implements C1 { // okay
        x : number;
        y : number;
    }