Provide compatibility exception checking boilerplate in JavaHL.

[in subversion/bindings/javahl]
* native/jniwrapper/jni_stack.hpp
  (SVN_JAVAHL_OLDSTYLE_EXCEPTION_CHECK): New macro.

* native/org_apache_subversion_javahl_util_PropLib.cpp
  (Java_org_apache_subversion_javahl_util_PropLib_checkNodeProp):
   Use SVN_JAVAHL_OLDSTYLE_EXCEPTION_CHECK instead of manual check.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1544138 13f79535-47bb-0310-9956-ffa450edef68