[tests] Readd Python binding tests to check-all

Now that both issues found out during the last iteration have been
fixed, reenable the Python binding tests on buildbots.

llvm-svn: 344365

clang/bindings/python/tests/CMakeLists.txt

@@ -7,4 +7,5 @@ add_custom_target(check-clang-python
     DEPENDS libclang
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/..)
 
-#set_property(GLOBAL APPEND PROPERTY LLVM_ADDITIONAL_TEST_TARGETS check-clang-python)
+set_property(GLOBAL APPEND PROPERTY
+             LLVM_ADDITIONAL_TEST_TARGETS check-clang-python)