Fix #13803 FP throwInNoexceptFunction when taking address of function (danmar#7486)

Co-authored-by: chrchr-github <noreply@github.com>

Author: chrchr-github

lib/checkexceptionsafety.cpp

@@ -257,7 +257,7 @@ static const Token * functionThrowsRecursive(const Function * function, std::set
             tok = tok->linkAt(1);  // skip till start of catch clauses
         if (tok->str() == "throw")
             return tok;
-        if (tok->function()) {
+        if (tok->function() && Token::simpleMatch(tok->astParent(), "(")) {
             const Function * called = tok->function();
             // check if called function has an exception specification
             if (called->isThrow() && called->throwArg)

test/testexceptionsafety.cpp

@@ -56,6 +56,7 @@ class TestExceptionSafety : public TestFixture {
         TEST_CASE(rethrowNoCurrentException1);
         TEST_CASE(rethrowNoCurrentException2);
         TEST_CASE(rethrowNoCurrentException3);
+        TEST_CASE(noFunctionCall);
     }
 
     struct CheckOptions
@@ -479,6 +480,16 @@ class TestExceptionSafety : public TestFixture {
               "void func3() { throw 0; }");
         ASSERT_EQUALS("", errout_str());
     }
+
+    void noFunctionCall() {
+        check("void f() {\n" // #13803
+              "    throw \"error\";\n"
+              "}\n"
+              "void g() noexcept {\n"
+              "    auto pF = &f;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout_str());
+    }
 };
 
 REGISTER_TEST(TestExceptionSafety)