Fixes to instrumentation for debug build and interpreter.

- Stub uninstall will put back the interpreter entry point if Xint
  mode is specified.
- Copy method entry and exit listeners before iterating over them
  to prevent problems that occur when they are modified during
- Corrected checks from WalkStack and AssertPcIsWithinCode to
  handle instrumented code since they are used to remove the stubs.

Change-Id: Ib0e2b421e6b56d520e4643699624dd80ee5148e3
4 files changed