Some small test features

src/GC/tests/h_test.cpp

@@ -0,0 +1,16 @@
+#include "../include/heap.hpp"
+
+GC::Heap gc;
+
+void init() {
+    gc = GC::Heap::the(); // pointer to the heap
+    std::vector<int> live_int_vec(100);
+    std::vector<int> dead_int_vec(100);
+    gc.alloc(sizeof(live_int_vec));
+    gc.alloc(sizeof(dead_int_vec));
+}
+
+int main() {
+    gc.print_contents();
+    return 0;
+}