hg: code-tools/jtreg: Updates to facilitate testing via the build-all script

[jonathan.gibbons at oracle.com]

Changeset: d4af698e1681
Author:    jjg
Date:      2018-04-13 15:18 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/d4af698e1681

Updates to facilitate testing via the build-all script

! README
! make/Makefile
! make/build-all.sh
! test/basic/Basic.gmk
! test/bootclasspath/BootClassPathTest.gmk
! test/ignoresymbolfile/IgnoreSymbolFileTest.gmk
! test/keywords/testKeywords.gmk
! test/maxOutputSize/MaxOutputSize.gmk
! test/rerun/RerunTest.gmk
! test/testng-junit/TestNGJUnitTest.gmk
! test/timeouthandlers/TimeoutHandlerTest.gmk