tests/cases/conformance/parser/ecmascript5/ParameterLists/parserParameterList13.ts(2,10): error TS2369: A parameter property is only allowed in a constructor implementation.
==== tests/cases/conformance/parser/ecmascript5/ParameterLists/parserParameterList13.ts (1 errors) ====
interface I {
new (public x);
~~~~~~~~
!!! error TS2369: A parameter property is only allowed in a constructor implementation.
}