8154149: tools/javac/unit/T6198196.java broken on Windows after JDK-8150641
Summary: Avoiding interference among sub-tests due to CacheFSInfo by using a new file manager for each sub-test
Reviewed-by: jjg
^build/
^dist/
^webrev
/nbproject/private/
^src/share/tools/hsdis/build/
^src/share/tools/IdealGraphVisualizer/[a-zA-Z0-9]*/build/
^src/share/tools/IdealGraphVisualizer/build/
^src/share/tools/IdealGraphVisualizer/dist/
^src/share/tools/IdealGraphVisualizer/nbplatform/
.igv.log
^.hgtip
.DS_Store
^\.mx.jvmci/env
^\.mx.jvmci/.*\.pyc
^\.mx.jvmci/eclipse-launches/.*
^\.mx.jvmci/hotspot/eclipse/.*
^\.idea/
^workingsets.xml
^src/jdk.vm.ci/share/classes/\w[\w\.]*/.*\.xml
^src/jdk.vm.ci/share/classes/\w[\w\.]*/.*\.iml
^src/jdk.vm.ci/share/classes/\w[\w\.]*/nbproject
^src/jdk.vm.ci/share/classes/\w[\w\.]*/\..*
^test/compiler/jvmci/\w[\w\.]*/.*\.xml
^test/compiler/jvmci/\w[\w\.]*/.*\.iml
^test/compiler/jvmci/\w[\w\.]*/nbproject
^test/compiler/jvmci/\w[\w\.]*/\..*