C++: Expand heuristic to catch more sources.

Author: MathiasVP

cpp/ql/lib/semmle/code/cpp/models/implementations/Allocation.qll

@@ -437,7 +437,7 @@ private module HeuristicAllocation {
     int sizeArg;
 
     HeuristicAllocationFunctionByName() {
-      Function.super.getName().matches("%alloc%") and
+      Function.super.getName().matches(["%alloc%", "%Alloc%"]) and
       Function.super.getUnspecifiedType() instanceof PointerType and
       sizeArg = unique( | | getAnUnsignedParameter(this))
     }

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

@@ -246,6 +246,6 @@ void test_flow_through_setter(unsigned size) {
 void* my_alloc(unsigned size);
 
 void foo(unsigned size) {
-    int* p = (int*)my_alloc(size); // BAD [NOT DETECTED]
+    int* p = (int*)my_alloc(size); // BAD
     memset(p, 0, size + 1);
 }