hg: jdk/sandbox: 8220368: Update String.indexOf to test all the C2 intrinsics

[chris.hegarty at oracle.com]

Changeset: 0324b3756aa2
Author:    ecaspole
Date:      2019-03-08 17:45 -0500
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/0324b3756aa2

8220368: Update String.indexOf to test all the C2 intrinsics
Summary: Add new micros for Latin1 and UTF-16
Reviewed-by: kvn, redestad

! test/micro/org/openjdk/bench/java/lang/StringIndexOf.java