missingReturn; Fixed false negative for goto-label

lib/checkfunctions.cpp

@@ -314,6 +314,8 @@ static const Token *checkMissingReturnScope(const Token *tok)
         }
         if (tok->isKeyword() && Token::Match(tok, "return|throw"))
             return nullptr;
+        if (Token::Match(tok, "[;{}] %name% :"))
+            return tok;
         if (Token::Match(tok, "; !!}") && !lastStatement)
             lastStatement = tok->next();
     }

test/testfunctions.cpp

@@ -1386,6 +1386,13 @@ private:
               "}");
         ASSERT_EQUALS("", errout.str());
 
+        check("int foo(int x) {\n"
+              "  if (x) goto out;\n"
+              "  return 1;\n"
+              "out:\n"
+              "}");
+        ASSERT_EQUALS("[test.cpp:3]: (error) Found a exit path from function with non-void return type that has missing return statement\n", errout.str());
+
         // switch
         check("int f() {\n"
               "    switch (x) {\n"