Update skeleton

examples/mem2reg/mem2reg.output.ir

@@ -45,17 +45,15 @@ block b0:
   %b0:i3:unit = nop
   %b0:i4:i32 = load %l0:*i32
 
-  j b1(37:i32)
+  j b1()
 
 block b1:
-  %b1:p0:i32:x
-
   %b1:i0:i32 = load %l0:*i32
 
   %b1:i1:unit = call @sink(undef:i32)
   %b1:i2:unit = call @sink(42:i32)
   %b1:i3:unit = call @sink(37:i32)
-  %b1:i4:unit = call @sink(%b1:p0:i32)
+  %b1:i4:unit = call @sink(37:i32)
 
   ret 0:i32
 }