hg: jdk/jdk: 8223454: Reduce String concatenation shapes by folding initialLengthCoder into last mixer

[claes.redestad at oracle.com]

Changeset: 04f603ebb6c2
Author:    redestad
Date:      2019-05-09 17:28 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/04f603ebb6c2

8223454: Reduce String concatenation shapes by folding initialLengthCoder into last mixer
Reviewed-by: jlaskey

! src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java