Update testconstructors.cpp

Author: chrchr-github

test/testconstructors.cpp

@@ -173,6 +173,7 @@ class TestConstructors : public TestFixture {
         TEST_CASE(uninitVar34); // ticket #10841
         TEST_CASE(uninitVar35);
         TEST_CASE(uninitVar36);
+        TEST_CASE(uninitVar37);
         TEST_CASE(uninitVarEnum1);
         TEST_CASE(uninitVarEnum2); // ticket #8146
         TEST_CASE(uninitVarStream);
@@ -3031,6 +3032,15 @@ class TestConstructors : public TestFixture {
         ASSERT_EQUALS("[test.cpp:5:5]: (warning) Member variable 'S::b' is not initialized in the constructor. [uninitMemberVar]\n", errout_str());
     }
 
+    void uninitVar37() {
+        const Settings s = settingsBuilder(settings).library("std.cfg").build();
+        check("struct C {\n" // #13989
+              "    C() = default;\n"
+              "    std::list<int>::const_iterator it;\n"
+              "};\n", dinit(CheckOptions, $.inconclusive = true, $.s = &s));
+        ASSERT_EQUALS("[test.cpp:2:5]: (warning) Member variable 'C::it' is not initialized in the constructor. [uninitMemberVar]\n", errout_str());
+    }
+
     void uninitVarArray1() {
         check("class John\n"
               "{\n"