Merge remote-tracking branch 'aosp/master' into add-jdi

Restore openjdk JDI interfaces and implementation. This restores the
following directories:
  src/share/classes/com/sun/jdi
  src/share/classes/com/sun/tools/jdi

Test: None
Change-Id: Iaf045ec918e7a6b74899f28e21328b854331153a