C++: Accept test changes.

Author: MathiasVP

cpp/ql/test/experimental/query-tests/Security/CWE/CWE-119/OverrunWriteProductFlow.expected

@@ -426,7 +426,5 @@ subpaths
 | test.cpp:199:9:199:15 | call to strncpy | test.cpp:147:19:147:24 | call to malloc | test.cpp:199:22:199:27 | string | This write may overflow $@ by 2 elements. | test.cpp:199:22:199:27 | string | string |
 | test.cpp:203:9:203:15 | call to strncpy | test.cpp:147:19:147:24 | call to malloc | test.cpp:203:22:203:27 | string | This write may overflow $@ by 2 elements. | test.cpp:203:22:203:27 | string | string |
 | test.cpp:207:9:207:15 | call to strncpy | test.cpp:147:19:147:24 | call to malloc | test.cpp:207:22:207:27 | string | This write may overflow $@ by 3 elements. | test.cpp:207:22:207:27 | string | string |
-| test.cpp:232:3:232:8 | call to memset | test.cpp:228:43:228:48 | call to malloc | test.cpp:232:10:232:15 | buffer | This write may overflow $@ by 32 elements. | test.cpp:232:10:232:15 | buffer | buffer |
 | test.cpp:243:5:243:10 | call to memset | test.cpp:241:27:241:32 | call to malloc | test.cpp:243:12:243:21 | string | This write may overflow $@ by 1 element. | test.cpp:243:16:243:21 | string | string |
 | test.cpp:250:5:250:10 | call to memset | test.cpp:249:20:249:27 | call to my_alloc | test.cpp:250:12:250:12 | p | This write may overflow $@ by 1 element. | test.cpp:250:12:250:12 | p | p |
-| test.cpp:257:5:257:10 | call to memset | test.cpp:256:17:256:22 | call to malloc | test.cpp:257:12:257:12 | p | This write may overflow $@ by 32 elements. | test.cpp:257:12:257:12 | p | p |

cpp/ql/test/experimental/query-tests/Security/CWE/CWE-119/test.cpp

@@ -229,7 +229,7 @@ void repeated_alerts(unsigned size, unsigned offset) {
   while(unknown()) {
     ++size;
   }
-  memset(buffer, 0, size); // BAD
+  memset(buffer, 0, size); // BAD [NOT DETECTED]
 }
 
 void set_string(string_t* p_str, char* buffer) {
@@ -254,6 +254,6 @@ void test6(unsigned long n, char *p) {
   while (unknown()) {
     n++;
     p = (char *)malloc(n);
-    memset(p, 0, n); // GOOD [FALSE POSITIVE]
+    memset(p, 0, n); // GOOD
   }
 }