LD_PRELOAD libasan for node

.travis.yml

@@ -223,16 +223,21 @@ script:
   - ./unit_tests/util-tests
   - ./unit_tests/server-tests
   - ./unit_tests/partition-tests
+  - |
+    if [ -n "${ENABLE_SANITIZER}" ]; then
+      # Node module compiled with sanitizer needs to preload libasan,
+      # otherwise sanitizer-internal symbols will not be found.
+      # This is due to how node loads our node binding shared object.
+      export LD_PRELOAD='/usr/lib/x86_64-linux-gnu/libasan.so.2'
+    fi
   - |
     if [ -n "${ENABLE_NODE_BINDINGS}" ]; then
-
-      echo ">>> symbol-tag-node-osrm"
-      nm -D ../lib/binding/node-osrm.node | c++filt
-      echo ">>> symbol-tag-libosrm"
-      nm libosrm.a | c++filt
-
       npm run nodejs-tests
     fi
+  - |
+    if [ -n "${ENABLE_SANITIZER}" ]; then
+      unset LD_PRELOAD
+    fi
   - popd
   - yarn test