[lworld] RFR: [lworld] Field::get should return default value instead of null on non-flattened inline field

[Roger Riggs]

On Tue, 26 Jan 2021 21:24:30 GMT, Mandy Chung <mchung at openjdk.org> wrote:

> A field could be of a non-flattened inline type.  `Unsafe::getReference(Object o, long offset, Class<?> valueType)` should be used instead.   The value type parameter is used to differentiate if the field is an inline type or not; if so, it will return an uninitialized value of the inline type.

Marked as reviewed by rriggs (Committer).

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PR: https://git.openjdk.java.net/valhalla/pull/314