Merge pull request #33012 from madmiraal/vmap-array-operator

Initialise VMap and HashMap values to the default when they are created.

core/hash_map.h

@@ -210,6 +210,7 @@ private:
 		e->next = hash_table[index];
 		e->hash = hash;
 		e->pair.key = p_key;
+		e->pair.data = TData();
 
 		hash_table[index] = e;
 		elements++;

core/vmap.h

@@ -196,8 +196,7 @@ public:
 
 		int pos = _find_exact(p_key);
 		if (pos < 0) {
-			V val;
-			pos = insert(p_key, val);
+			pos = insert(p_key, V());
 		}
 
 		return _cowdata.get_m(pos).value;