Update jit to handle changes to ReadOnlySpan indexer

Author: AndyAyersMS

src/inc/corinfo.h

@@ -213,11 +213,11 @@ TODO: Talk about initializing strutures before use
     #define SELECTANY extern __declspec(selectany)
 #endif
 
-SELECTANY const GUID JITEEVersionIdentifier = { /* 8f51c68e-d515-425c-9e04-97e4a8148b07 */
-    0x8f51c68e,
-    0xd515,
-    0x425c,
-    {0x9e, 0x04, 0x97, 0xe4, 0xa8, 0x14, 0x8b, 0x07}
+SELECTANY const GUID JITEEVersionIdentifier = { /* 3c1197a4-2f0f-4048-b09f-859c11242a02 */
+    0x3c1197a4,
+    0x2f0f,
+    0x4048,
+    {0xb0, 0x9f, 0x85, 0x9c, 0x11, 0x24, 0x2a, 0x02}
 };
 
 //////////////////////////////////////////////////////////////////////////////////////////////////////////

src/jit/importer.cpp

@@ -3702,10 +3702,7 @@ GenTree* Compiler::impIntrinsic(GenTree*                newobjThis,
             //     BoundsCheck(index, s->_length)
             //     s->_pointer + index * sizeof(T)
             //
-            // For ReadOnlySpan<T>
-            //   Comma
-            //     BoundsCheck(index, s->_length)
-            //     *(s->_pointer + index * sizeof(T))
+            // For ReadOnlySpan<T> -- same expansion, as it now returns a readonly ref
             //
             // Signature should show one class type parameter, which
             // we need to examine.
@@ -3758,17 +3755,8 @@ GenTree* Compiler::impIntrinsic(GenTree*                newobjThis,
 
             // Prepare result
             var_types resultType = JITtype2varType(sig->retType);
-
-            if (isReadOnly)
-            {
-                result = gtNewOperNode(GT_IND, resultType, result);
-            }
-            else
-            {
-                assert(resultType == result->TypeGet());
-            }
-
-            retNode = gtNewOperNode(GT_COMMA, resultType, boundsCheck, result);
+            result               = gtNewOperNode(GT_IND, resultType, result);
+            retNode              = gtNewOperNode(GT_COMMA, resultType, boundsCheck, result);
 
             break;
         }