==== tests/cases/conformance/parser/ecmascript5/ParameterLists/parserParameterList16.ts (2 errors) ====
    class C {
       foo(a = 4);
       ~~~~~~~~~~~
!!! Overload signature is not compatible with function implementation.
           ~~~~~
!!! A parameter initializer is only allowed in a function or constructor implementation.
       foo(a, b) { }
    }