add test data

test/testcases/array_test1.c

@@ -0,0 +1,21 @@
+#include "io.inc"
+
+int a[4];
+int main() {
+  int b[4];
+  int i;
+  for (i = 0; i < 4; i++) {
+    a[i] = 0;
+    b[i] = i + 1;
+  }
+  for (i = 0; i < 4; i++) {
+    printInt(a[i]);
+  }
+
+  int *p;
+  p = b;
+  for (i = 0; i < 4; i++) {
+    printInt(p[i]);
+  }
+  return judgeResult % Mod; // 123
+}