RFR: 8218738: Remove dead code in Symbol and friends

[Claes Redestad]

On 2019-02-12 15:26, coleen.phillimore at oracle.com wrote:
>> The
>> alternative to removing in my mind then becomes wrapping unused code in
>> #ifndef PRODUCT.
> 
> This is a good idea, with a short comment that it might be useful for 
> testing.  I'd hate to have to rewrite or resurrect from_quoted_ascii. 
> Maybe we can move it to a gtest in the future.

Sure, how about this:
http://cr.openjdk.java.net/~redestad/8218738/open.01/

/Claes