tests/basics/memoryerror: Add test for out-of-memory using realloc.

tests/basics/memoryerror.py

@@ -1,6 +1,13 @@
+# test out-of-memory with malloc
 l = list(range(1000))
 try:
     1000000000 * l
 except MemoryError:
     print('MemoryError')
 print(len(l), l[0], l[-1])
+
+# test out-of-memory with realloc
+try:
+    [].extend(range(1000000000))
+except MemoryError:
+    print('MemoryError')

tests/basics/memoryerror.py.exp

@@ -1,2 +1,3 @@
 MemoryError
 1000 0 999
+MemoryError