RFR: 8310920: Fix -Wconversion warnings in command line flags

Tue Jun 27 12:51:17 UTC 2023

On Mon, 26 Jun 2023 20:33:19 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This is broken out from but tested with the PR from https://github.com/openjdk/jdk/pull/14659

With a few more changes, the enum JVMFlagconstraintPhase can be used rather than char.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/14665#issuecomment-1609434450