tests/cases/compiler/defaultValueInConstructorOverload1.ts(2,17): error TS2371: A parameter initializer is only allowed in a function or constructor implementation.
==== tests/cases/compiler/defaultValueInConstructorOverload1.ts (1 errors) ====
class C {
constructor(x = '');
~~~~~~
!!! error TS2371: A parameter initializer is only allowed in a function or constructor implementation.
constructor(x = '') {
}