RFR: 8260198: TypeInstPtr::dump2() emits multiple lines if Verbose is set [v9]

[Xin Liu]

On Thu, 25 Feb 2021 10:40:07 GMT, Evgeny Astigeevich <github.com+42899633+eastig at openjdk.org> wrote:

>> Xin Liu has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8260198: TypeInstPtr::dump2() emits multiple lines if Verbose is set
>>   
>>   update comments based on the review feedbacks.
>>   move the unittest to test_stringUtil.cpp.
>
> Marked as reviewed by eastig at github.com (no known OpenJDK username).

@eastig  Thank you for reviewing it. 
@TobiHartmann  Could you take a look at it again? I made a little change after you approve it.  If everything looks fine, could  you  sponsor it?  Thanks!

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PR: https://git.openjdk.java.net/jdk/pull/2178