==== tests/cases/compiler/numericClassMembers1.ts (2 errors) ====
    class C234 {
      0 = 1; 
      0.0 = 2;
      ~~~
!!! Duplicate identifier '0.0'.
    }
     
    class C235 { 
      0.0 = 1;
     '0' = 2;
     ~~~
!!! Duplicate identifier ''0''.
    }
    
    class C236 {
        '0.0' = 1;
        '0' = 2;
    }