TEST: java/lang/instrument .sh tests need to use $TESTVMOPTS in their java commands

Versions of jtreg older than this
  http://javaweb/java/re/jct-tools/3.2.2_01/nightly/snapshot/

have a bug and do not pass TESTVMOPTS to shell scripts.
This has been fixed and the following jtreg tests should be changed
to use $TESTVMOPTS in their java commands:

    java/lang/instrument/appendToClassLoaderSearch/CircularityErrorTest.sh
    java/lang/instrument/appendToClassLoaderSearch/ClassUnloadTest.sh
    java/lang/instrument/appendToClassLoaderSearch/run_tests.sh
    java/lang/instrument/BootClassPath/BootClassPathTest.sh
    java/lang/instrument/PremainClass/PremainClassTest.sh