Build the tests with -g

think this got lost when mark added separate release/debug builds

Makefile

@@ -51,7 +51,7 @@ $(DEBUG_OBJECTS): CXXFLAGS += $(DEBUG_OPTIMIZE_FLAGS)
 $(DEBUG_TARGET): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS)
 
 $(TEST_BINARIES): CPPFLAGS += -Itests/include
-$(TEST_BINARIES): LDFLAGS += $(TEST_OPTIMIZE_FLAGS) -L$(BUILD_DIR)
+$(TEST_BINARIES): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS) -L$(BUILD_DIR)
 
 $(JS_OBJECTS): CFLAGS += $(JS_OPTIMIZE_FLAGS)
 $(JS_OBJECTS): CXXFLAGS += $(JS_OPTIMIZE_FLAGS)