RFR: 8319117: GrowableArray: Allow for custom initializer instead of copy constructor [v13]

[Johan Sjölen]

> Hi, 
> 
> When using at_put and at_put_grow you can provide a value which will be supplied to the constructor of each element. In other words, you can intialize each element through a copy constructor.
> 
> I suggest that we also provide a function equivalent where the function is provided a pointer to the memory to be initialized. This can be used for `NONCOPYABLE` classes, for example.
> 
> This is implemented using a SFINAE pattern because `nullptr` introduces ambiguity if you use static overload.
> 
> Currently running tier1-tier4.

Johan Sjölen has updated the pull request incrementally with one additional commit since the last revision:

  Alternative solution

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Changes:
  - all: https://git.openjdk.org/jdk/pull/16409/files
  - new: https://git.openjdk.org/jdk/pull/16409/files/5ab96639..5786481c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16409&range=12
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16409&range=11-12

  Stats: 9 lines in 1 file changed: 0 ins; 4 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/16409.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16409/head:pull/16409

PR: https://git.openjdk.org/jdk/pull/16409