==== tests/cases/conformance/types/objectTypeLiteral/propertySignatures/numericStringNamedPropertyEquivalence.ts (4 errors) ====
    // Each of these types has an error in it. 
    // String named and numeric named properties conflict if they would be equivalent after ToNumber on the property name.
    class C {
        "1": number;
        "1.0": number; // not a duplicate
        1.0: number;
        ~~~
!!! Duplicate identifier '1.0'.
    }
    
    interface I {
        "1": number;
        "1.": number; // not a duplicate
        1: number;
        ~
!!! Duplicate identifier '1'.
    }
    
    var a: {
        "1": number;
        1.0: string;
        ~~~
!!! Duplicate identifier '1.0'.
    }
    
    var b = {
        "0": '',
        0: ''
        ~
!!! Duplicate identifier '0'.
    }