[code-reflection] Integrated: Hide implementation computing global names

[Paul Sandoz]

On Wed, 31 Jan 2024 23:14:36 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> `OpWriter` is updated to accept a function for computing the names of blocks and values, which is also made accessible.
> 
> The default implement is now embedded in `OpWriter`, so we can remove the writer impl package. 
> 
> A separate method is added to compute the global names for blocks and values using the same algorithm that `OpWriter` uses.  This is useful for debugging when names need to be printed in context to the textual form of the model.
> 
> A new top-level sealed class `CodeItem` was introduced so we can refer to either blocks or values without resorting to `Object`. We shall see if this remains a useful top-level abstraction.

This pull request has now been integrated.

Changeset: 72191af7
Author:    Paul Sandoz <psandoz at openjdk.org>
URL:       https://git.openjdk.org/babylon/commit/72191af726a846e1e861137c134856e657b7869d
Stats:     333 lines in 9 files changed: 227 ins; 63 del; 43 mod

Hide implementation computing global names

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PR: https://git.openjdk.org/babylon/pull/13