Fix test.

test/test_suite/builtins/int_to_mask.c3t

@@ -19,9 +19,9 @@ define void @test.test() #0 {
 entry:
   %x = alloca <8 x i8>, align 8
   %y = alloca <32 x i8>, align 32
-  %0 = sext <8 x i1> bitcast (<1 x i8> splat (i8 120) to <8 x i1>) to <8 x i8>
+  %0 = sext <8 x i1> bitcast (<1 x i8>
   store <8 x i8> %0, ptr %x, align 8
-  %1 = sext <32 x i1> bitcast (<1 x i32> splat (i32 120) to <32 x i1>) to <32 x i8>
+  %1 = sext <32 x i1> bitcast (<1 x i32>
   store <32 x i8> %1, ptr %y, align 32
   ret void
 }