Fixed ticket #3448 (segmentation fault of cppcheck).

Add testcase related to previous commit (add 'A f(&x);' as declaration of variable).

lib/tokenize.cpp

@@ -2518,7 +2518,8 @@ void Tokenizer::simplifyDefaultAndDeleteInsideClass()
                         tok2 = tok2->previous();
                     if (Token::Match(tok2, "[;{}]") || tok2->isName())
                         Token::eraseTokens(tok2, end);
-                    tok2 = end;
+                    else
+                        tok2 = end->previous();
                 }
             }
         }

test/testtokenize.cpp

@@ -3054,6 +3054,7 @@ private:
     }
 
     void varid37() {
+        {
             const std::string code = "void blah() {"
                                      "    Bar bar(*x);"
                                      "}";
@@ -3061,6 +3062,15 @@ private:
                           "void blah ( ) { Bar bar@1 ( * x ) ; }\n",
                           tokenizeDebugListing(code));
         }
+        {
+            const std::string code = "void blah() {"
+                                     "    Bar bar(&x);"
+                                     "}";
+            ASSERT_EQUALS("\n\n##file 0\n1: "
+                          "void blah ( ) { Bar bar@1 ( & x ) ; }\n",
+                          tokenizeDebugListing(code));
+        }
+    }
 
     void varid38() {
         const std::string code = "FOO class C;\n";
@@ -5171,6 +5181,15 @@ private:
             TODO_ASSERT_EQUALS("struct foo { }",
                                "struct foo { foo ( ) ; } foo :: foo ( ) = delete ;", tokenizeAndStringify(code));
         }
+
+        //ticket #3448 (segmentation fault)
+        {
+            const char *code = "struct A {"
+                               "  void bar () = delete;"
+                               "};"
+                               "void baz () = delete;";
+            ASSERT_EQUALS("struct A { } ; void baz ( ) = delete ;", tokenizeAndStringify(code));
+        }
     }
 
     std::string arraySize_(const std::string &code) {