[lworld] Integrated: Use stringStream to keep field layout output together.

[Coleen Phillimore]

On Fri, 14 Jun 2024 18:43:56 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Tested with -XX:+PrintFieldLayout comparing before and after, and field_layout tests.
> 
>    TEST                                              TOTAL  PASS  FAIL ERROR   
>    jtreg:test/hotspot/jtreg/runtime/valhalla/inlinetypes/field_layout
>                                                          6     6     0     0

This pull request has now been integrated.

Changeset: eb69365a
Author:    Coleen Phillimore <coleenp at openjdk.org>
Committer: Frederic Parain <fparain at openjdk.org>
URL:       https://git.openjdk.org/valhalla/commit/eb69365a6207bc807ed79a04062332328f7b636a
Stats:     18 lines in 1 file changed: 2 ins; 0 del; 16 mod

Use stringStream to keep field layout output together.

Reviewed-by: fparain

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PR: https://git.openjdk.org/valhalla/pull/1132