tests/cases/compiler/inheritanceMemberAccessorOverridingMethod.ts(8,9): error TS1056: Accessors are only available when targeting ECMAScript 5 and higher.
tests/cases/compiler/inheritanceMemberAccessorOverridingMethod.ts(11,9): error TS1056: Accessors are only available when targeting ECMAScript 5 and higher.
Type 'string' is not assignable to type '() => string'.
tests/cases/compiler/inheritanceMemberAccessorOverridingMethod.ts(8,9): error TS2423: Class 'a' defines instance member function 'x', but extended class 'b' defines it as instance member accessor.