RFR: 8314610: hotspot can't compile with the latest of gtest because of <iomanip>

Sat Aug 19 01:13:37 UTC 2023

On Fri, 18 Aug 2023 23:15:09 GMT, Xin Liu <xliu at openjdk.org> wrote:

> This patch fixed a compilation error when we use the latest gtest. Because gtest has removed 
> <iomanip> from its header files([link](https://github.com/google/googletest/commit/9ef5e8226919b56d6760b48258e706d819409994)),  we should include it by ourselves, or we can't find the definition of std::setw.

LGTM

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Marked as reviewed by jiefu (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15352#pullrequestreview-1585377142