RFR: 8198523: Refactor BootstrapMethodInvoker to further avoid runtime type checks

[Paul Sandoz]

+1

Paul.

> On Feb 21, 2018, at 1:00 PM, Claes Redestad <claes.redestad at oracle.com> wrote:
> 
> Hi,
> 
> BootstrapMethodInvoker can be improved a bit further by providing
> static information about the type argument, and additionally
> teaching it about StringConcatFactory BSM:
> 
> Patch: http://cr.openjdk.java.net/~redestad/8198523/jdk.00/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8198523
> 
> This slightly improves startup on string concat tests.
> 
> Thanks!
> 
> /Claes