False-positive when dereferencing an inline-initialized field from constructor body

[agrieve]

@NullMarked
class Foo {
    private @Nullable Object mArgs = new Object();

    Foo() {
        mArgs.getClass();
    }
}

Gives:

Foo.java:9: warning: [NullAway] dereferenced expression mArgs is @Nullable
        mArgs.getClass();
             ^
    (see http://t.uber.com/nullaway )

[msridhar]

I can reproduce this and I think we should handle it. It'll take a bit of time to do the implementation required.