to disposed, the relevant variables (bDisposed and bInDispose) are written to
outside a synchronized block.

The equivalent C++ implementation in main/cppuhelper/source/implbase.cxx,
method WeakComponentImplHelperBase::dispose(), already does this.

Patch by: me

(cherry picked from commit 2d382cef)

Change-Id: I6c3e2ef78bc3c945245fe9fb7b6b713eb83710be
Reviewed-on: https://gerrit.libreoffice.org/42189Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>