Fixed #2555 (Cppcheck 1.47 - Crash on WinMerge-Trunk (Win7 x64))

lib/checkmemoryleak.cpp

@@ -1250,7 +1250,7 @@ Token *CheckMemoryLeakInFunction::getcode(const Token *tok, std::list<const Toke
         if ((tok->str() == "else") || (tok->str() == "switch"))
         {
             addtoken(&rettail, tok, tok->str());
-            if (tok->str() == "switch")
+            if (Token::simpleMatch(tok, "switch ("))
                 tok = tok->next()->link();
             continue;
         }

test/testmemleak.cpp

@@ -197,6 +197,7 @@ private:
 
         TEST_CASE(switch2);
         TEST_CASE(switch3);
+        TEST_CASE(switch4);     // #2555 - segfault
 
         TEST_CASE(ret5);        // Bug 2458436 - return use
         TEST_CASE(ret6);
@@ -1287,6 +1288,17 @@ private:
         ASSERT_EQUALS("[test.cpp:9]: (error) Memory leak: str\n", errout.str());
     }
 
+    void switch4()
+    {
+        check("void f() {\n"
+              "    switch MAKEWORD(1)\n"
+              "    {\n"
+              "    case 0:\n"
+              "        return;\n"
+              "    }\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+    }
 
     void ret5()
     {