Clean up run script to use for testing Subzero.

tests_lit/reader_tests/insertextract.ll

 ; Tests insertelement and extractelement vector instructions.
 
-
-; RUN: llvm-as < %s | pnacl-freeze -allow-local-symbol-tables \
-; RUN:              | %llvm2ice -notranslate -verbose=inst -build-on-read \
-; RUN:                -allow-pnacl-reader-error-recovery \
-; RUN:                -allow-local-symbol-tables \
-; RUN:              | FileCheck %s
+; RUN: %p2i -i %s --insts | FileCheck %s
 
 ; TODO(kschimpf): Change index arguments to valid constant indices once
 ; we can handle constants.
 
 define void @ExtractV4xi1(<4 x i1> %v, i32 %i) {
 entry:
   %e = extractelement <4 x i1> %v, i32 %i
   ret void
 }
 
@@ skipping 161 matching lines @@
 entry:
   %r = insertelement <4 x float> %v, float %e, i32 %i
   ret <4 x float> %r
 }
 
 ; CHECK-NEXT: define <4 x float> @InsertV4xfloat(<4 x float> %v, float %e, i32 %i) {
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT:   %r = insertelement <4 x float> %v, float %e, i32 %i
 ; CHECK-NEXT:   ret float %r
 ; CHECK-NEXT: }