tests/cases/conformance/parser/ecmascript5/ArrowFunctionExpressions/parserArrowFunctionExpression1.ts(1,10): error TS2369: A parameter property is only allowed in a constructor implementation.
==== tests/cases/conformance/parser/ecmascript5/ArrowFunctionExpressions/parserArrowFunctionExpression1.ts (1 errors) ====
var v = (public x: string) => { };
~~~~~~~~~~~~~~~~
!!! error TS2369: A parameter property is only allowed in a constructor implementation.