Update testautovariables.cpp

Author: chrchr-github

test/testautovariables.cpp

@@ -4120,6 +4120,19 @@ class TestAutoVariables : public TestFixture {
               "    (void)m->first;\n"
               "}\n");
         ASSERT_EQUALS("[test.cpp:9:63] -> [test.cpp:9:49] -> [test.cpp:10:11]: (error) Using iterator that is a temporary. [danglingTemporaryLifetime]\n",
+
+        check("struct A {\n" // #14054
+              "    std::map<int, int> m_;\n"
+              "};\n"
+              "struct B {\n"
+              "    A a_;\n"
+              "};\n"
+              "B func();\n"
+              "void f() {\n"
+              "    const std::map<int, int>::iterator m = func().a_.m_.begin();\n"
+              "    (void)m->first;\n"
+              "}\n");
+        ASSERT_EQUALS("[test.cpp:9:62] -> [test.cpp:9:48] -> [test.cpp:10:11]: (error) Using iterator that is a temporary. [danglingTemporaryLifetime]\n",
                       errout_str());
 
         check("void f(bool b) {\n"