Update ir examples

examples/ir1/array.ir

@@ -50,6 +50,8 @@ init:
     %l3:i32:i
 
 block b0:
+  %b0:p0:i32:len
+  %b0:p1:i32*:p
   %b0:i0:unit = store %b0:p0:i32 %l0:i32*
   %b0:i1:unit = store %b0:p1:i32* %l1:i32**
   %b0:i2:unit = store 0:i32 %l2:i32*