hg: code-tools/jtreg: Add support for TEST.ROOT

[jonathan.gibbons at oracle.com]

Changeset: 9d5ac9297316
Author:    jjg
Date:      2019-01-25 11:21 -0800
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/9d5ac9297316

Add support for TEST.ROOT

! src/share/classes/com/sun/javatest/regtest/exec/RegressionScript.java
! src/share/classes/com/sun/javatest/regtest/exec/ShellAction.java
! src/share/doc/javatest/regtest/tag-spec.html
! test/rerun/std/AppletTest.agentvm.out
! test/rerun/std/AppletTest.othervm.out
! test/rerun/std/BuildTest.agentvm.out
! test/rerun/std/BuildTest.othervm.out
! test/rerun/std/CompileTest.agentvm.out
! test/rerun/std/CompileTest.othervm.out
! test/rerun/std/JUnitTest.agentvm.out
! test/rerun/std/JUnitTest.othervm.out
! test/rerun/std/MainTest.agentvm.out
! test/rerun/std/MainTest.othervm.out
! test/rerun/std/ShellTest.agentvm.out
! test/rerun/std/ShellTest.othervm.out
! test/rerun/std/TestNGTest.agentvm.out
! test/rerun/std/TestNGTest.othervm.out
! test/rerun/testng/TestNGTest.agentvm.out
! test/rerun/testng/TestNGTest.othervm.out