Date type changed to Object type, when run from src, while run from build works.

[An1mus]

Hello.
I've created a decorator for DateTime field, which type is Date.
TS(src) example:

@DateTimeField()
someField: Date;

JS(build) example:

__decorate([
      date_time_field_1.DateTimeField(),
      __metadata("design:type", Date)
]

When running test from .ts file, Reflect.type of this field is Object , and .js gives back Date.
While build folder contains:
__metadata("design:type", Date)

Decorator function:

export function DateTimeField(options: DateTimeFieldDecoratorOptions) {
    return (target: any, name: string, descr?: any) => {
        validatePropertyDecorator(target, name, descr);

        const reflectType = Reflect.getMetadata("design:type", target, name);
        checkReflectType(reflectType, Date, name);

        const field = getOrCreateField(target, name);
        Object.assign(field, options, {type: ResourceFieldType.DateTime});
    }
}

Tell me please if I need to provide you with some more info?

[blakeembrey]

Duplicate of #511. See also https://github.com/TypeStrong/ts-node#features. This will likely be reverted in the future.