Object.values should not accept undefined or null

[aboyton]

TypeScript Version: 2.7.0-dev.201xxxxx
Reproduced locally with 2.5.3 but it seems to still be the case in master. https://github.com/Microsoft/TypeScript/blob/master/src/lib/es2017.object.d.ts

Code

const foo = Object.values(undefined);

Expected behaviour:
This should be a compile error, like Object.keys(undefined) is.

The type signature for Object.keys is

keys(o: {}): string[];

but for Object.values and Object.entities it is:

values<T>(o: { [s: string]: T }): T[];
values(o: any): any[];

entries<T>(o: { [s: string]: T }): [string, T][];
entries(o: any): [string, any][];

Ideally it would be nice to have specialisations for if o: string as well, but at minimum it would be nice to at least replace o: any with o: {} to catch the above error.

Actual behaviour:
This compiles correctly and gives a runtime error.