Fixed #1949: assert() hides memory leaks

Added separate unit-test (trac1949), initially broken to highlight the error and added "assert" to call_func_white_list.

Left TestMemleakInFunction::call_func() as is, as this wouldn't highlight the actual problem.

lib/checkmemoryleak.cpp

@@ -44,7 +44,7 @@ CheckMemoryLeakStructMember instance3;
 // This list needs to be alphabetically sorted so we can run bsearch on it
 static const char * const call_func_white_list[] =
 {
-    "asctime", "asctime_r", "asprintf", "atof", "atoi", "atol", "clearerr"
+    "asctime", "asctime_r", "asprintf", "assert", "atof", "atoi", "atol", "clearerr"
     , "ctime", "ctime_r", "delete", "fchmod", "fclose", "fcntl"
     , "fdatasync", "feof", "ferror", "fflush", "fgetc", "fgetpos", "fgets"
     , "flock", "for", "fprintf", "fputc", "fputs", "fread", "free", "fscanf", "fseek"

test/testmemleak.cpp

@@ -408,6 +408,8 @@ private:
 
         // setjmp/longjmp..
         TEST_CASE(jmp);
+
+        TEST_CASE(trac1949);
     }
 
 
@@ -2985,6 +2987,23 @@ private:
               "}\n");
         ASSERT_EQUALS("", errout.str());
     }
+
+    void trac1949()
+    {
+        check("\n"
+              "\n"
+              "int fn()\n"
+              "{\n"
+              "char * buff = new char[100];\n"
+              "assert (buff);\n"
+              "\n"
+              "\n"
+              "\n"
+              "return 0;\n"
+              "}\n"
+             );
+        ASSERT_EQUALS("[test.cpp:10]: (error) Memory leak: buff\n", errout.str());
+    }
 };
 
 static TestMemleakInFunction testMemleakInFunction;