fix #13851: FN sizeofFunctionCall after preceding sizeof (#7704)

Author: ludviggunne

lib/checksizeof.cpp

@@ -379,7 +379,7 @@ void CheckSizeof::sizeofFunction()
             if (const Token *argument = tok->next()->astOperand2()) {
                 const Token *checkToken = argument->previous();
                 if (checkToken->tokType() == Token::eName)
-                    break;
+                    continue;
                 const Function * fun = checkToken->function();
                 // Don't report error if the function is overloaded
                 if (fun && fun->nestedIn->functionMap.count(checkToken->str()) == 1) {

test/testsizeof.cpp

@@ -206,6 +206,11 @@ class TestSizeof : public TestFixture {
               "    };\n"
               "};");
         ASSERT_EQUALS("", errout_str());
+
+        check("int g();\n"
+              "size_t f1() { return sizeof(x[0]); }\n"
+              "size_t f2() { return sizeof(g()); }\n");
+        ASSERT_EQUALS("[test.cpp:3:22]: (warning) Found function call inside sizeof(). [sizeofFunctionCall]\n", errout_str());
     }
 
     void sizeofForArrayParameter() {