=== tests/cases/compiler/useDefineForClassFieldsFlagDefault.ts ===
class Foo {
>Foo : Foo

    // For esNext should be emitted 'as is' because useDefineForClassFields defaults to true 
    // For es2020 should be emitted as an assignment after the class definition (not Object.defineProperty) because useDefineForClassFields defaults to false
    static x = 1; 
>x : number
>1 : 1
}