git: openjdk/loom: fibers: Updated ParallelTransformerLoader test to support virtual threads. (Converted sh->java)

[duke]

Changeset: df782882
Author:    lmesnik <leonid.mesnik at oracle.com>
Date:      2021-05-04 17:01:48 +0000
URL:       https://git.openjdk.java.net/loom/commit/df782882868d4122a1659f1645aed3a7d4651bf3

Updated ParallelTransformerLoader test to support virtual threads. (Converted sh->java)

- test/jdk/java/lang/instrument/ParallelTransformerLoader.sh
! test/jdk/java/lang/instrument/ParallelTransformerLoaderAgent.java
- test/jdk/java/lang/instrument/ParallelTransformerLoaderApp.java
+ test/jdk/java/lang/instrument/ParallelTransformerLoaderTest.java
! test/jdk/java/lang/instrument/TestClass1.java
! test/jdk/java/lang/instrument/TestClass2.java
! test/jdk/java/lang/instrument/TestClass3.java