Update test case for same-type-to-concrete redundancy fixes.

Author: DougGregor

test/SILOptimizer/prespecialize.swift

@@ -11,7 +11,7 @@
 // CHECK-LABEL: sil [noinline] @_TF13prespecialize4testFTRGSaSi_4sizeSi_T_ 
 //
 // function_ref specialized Collection<A where ...>.makeIterator() -> IndexingIterator<A>
-// CHECK: function_ref @_TTSgq5GVs14CountableRangeSi_GS_Si_s10Collections___TFesRxs10Collectionwx8IteratorzGVs16IndexingIteratorx_wx8_ElementzWxS0_7Element_rS_12makeIteratorfT_GS1_x_
+// CHECK: function_ref @_TTSgq5GVs14CountableRangeSi_GS_Si_s10Collections___TFesRxs10Collectionwx8IteratorzGVs16IndexingIteratorx_rS_12makeIteratorfT_GS1_x_
 //
 // function_ref specialized IndexingIterator.next() -> A._Element?
 // CHECK: function_ref @_TTSgq5GVs14CountableRangeSi_GS_Si_s14_IndexableBases___TFVs16IndexingIterator4nextfT_GSqwx8_Element_