Fix #13727 FP knownEmptyContainer with call to insert() template (danmar#7490)

Author: chrchr-github

lib/astutils.cpp

@@ -295,7 +295,7 @@ static std::pair<const Token*, const Library::Container*> getContainerFunction(c
     if (!tok || !tok->valueType() || (!tok->valueType()->container && (!(cont = library.detectContainerOrIterator(tok->valueType()->smartPointerTypeToken)))))
         return {};
     const Token* parent = tok->astParent();
-    if (Token::Match(parent, ". %name% (") && astIsLHS(tok)) {
+    if (Token::Match(parent, ". %name% [(<]") && astIsLHS(tok)) {
         return { parent->next(), cont ? cont : tok->valueType()->container };
     }
     return {};

test/teststl.cpp

@@ -6956,6 +6956,13 @@ class TestStl : public TestFixture {
               "        s += \'a\';\n"
               "}\n", dinit(CheckOptions, $.inconclusive = true));
         ASSERT_EQUALS("", errout_str());
+
+        check("void f(std::vector<int>::iterator it) {\n" // #13727
+              "    std::vector<int> v;\n"
+              "    v.insert<std::vector<int>::iterator>(v.end(), it, it + 1);\n"
+              "    for (auto i : v) {}\n"
+              "}\n", dinit(CheckOptions, $.inconclusive = true));
+        ASSERT_EQUALS("", errout_str());
     }
 
     void checkMutexes() {