hg: jdk/submit: 8222955: Optimize String.replace(CharSequence, CharSequence) for common cases

[ivan.gerasimov at oracle.com]

Changeset: 6188582d58b5
Author:    igerasim
Date:      2019-05-06 18:07 -0700
URL:       http://hg.openjdk.java.net/jdk/submit/rev/6188582d58b5

8222955: Optimize String.replace(CharSequence, CharSequence) for common cases
Reviewed-by: redestad, tvaleev

! src/java.base/share/classes/java/lang/String.java
! src/java.base/share/classes/java/lang/StringLatin1.java
! src/java.base/share/classes/java/lang/StringUTF16.java
! test/jdk/java/lang/String/LiteralReplace.java
+ test/micro/org/openjdk/bench/java/lang/StringReplace.java