CheckStl::readingEmptyStlContainer(): Skip over lambdas (#8055)

lib/checkstl.cpp

@@ -1551,7 +1551,8 @@ void CheckStl::readingEmptyStlContainer()
                 }
             } else if (Token::Match(tok, "do|}|break|case")) {
                 emptyContainer.clear();
-            }
+            } else if (tok->str() == "{" && tok->next()->scope()->type == Scope::eLambda)
+                tok = tok->link();
 
             if (!tok->varId())
                 continue;

test/teststl.cpp

@@ -3019,6 +3019,18 @@ private:
               "    it = test.end();\n"
               "}");
         ASSERT_EQUALS("", errout.str());
+
+        // #8055
+        check("int main() {\n"
+              "    std::string str;\n"
+              "    auto l = [&]() {\n"
+              "        if (str[0] == 'A')\n"
+              "            std::cout << \"!\";\n"
+              "    }\n"
+              "    str = \"A\";\n"
+              "    l();\n"
+              "}");
+        ASSERT_EQUALS("", errout.str());
     }
 };