==== tests/cases/conformance/types/objectTypeLiteral/indexSignatures/multipleNumericIndexers.ts (8 errors) ====
    // Multiple indexers of the same type are an error
    
    class C {
        [x: number]: string;
        [x: number]: string;
        ~~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
    }
    
    interface I {
        [x: number]: string;
        [x: number]: string;
        ~~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
    }
    
    var a: {
        [x: number]: string;
        [x: number]: string;
        ~~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
    }
    
    var b: {
        [x: number]: string;
        [x: number]: string
        ~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
    } = { 1: '', "2": '' }
    
    class C2<T> {
        [x: number]: string;
        [x: number]: string;
        ~~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
    }
    
    interface I<T> {
              ~
!!! All declarations of an interface must have identical type parameters.
        [x: number]: string;
        ~~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
        [x: number]: string;
        ~~~~~~~~~~~~~~~~~~~~
!!! Duplicate number index signature.
    }