Propose to use clang-format to enforce hotspot codestyle

[coleen.phillimore at oracle.com]

On 3/12/20 5:36 AM, Andrew Haley wrote:
> On 3/12/20 9:30 AM, Liu, Xin wrote:
>> I expect to have a huge change, but it’s a one-time thing.
> No, please do not do this.
>
> It well mess up the diffs, and it will make auto-merging fail. It will
> add considerable costs to the updates project for every backport. It
> is in every way a bad idea.
>
Thank you.  Do not pretty print the source code.
Coleen