add missing cmakelist modification for the wasm start func feature

tests/CMakeLists.txt

@@ -37,6 +37,7 @@ target_link_libraries( chain_test eosio_testing eosio_chain chainbase eos_utilit
 
 if(WASM_TOOLCHAIN)
   target_include_directories( chain_test PUBLIC ${CMAKE_BINARY_DIR}/contracts ${CMAKE_CURRENT_BINARY_DIR}/tests/contracts )
+  target_include_directories( chain_test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/wasm_tests )
   add_dependencies(chain_test asserter test_api currency proxy)
 endif()