[turbofan] Add FixedArray peephole optimizations to CodeStubAssembler

test/cctest/compiler/test-code-stub-assembler.cc

Index: test/cctest/compiler/test-code-stub-assembler.cc
diff --git a/test/cctest/compiler/test-code-stub-assembler.cc b/test/cctest/compiler/test-code-stub-assembler.cc
index ff02cc9b445a5640899335993b9b22eb63defeb3..d73e03c8ee0c4dc6b880b7638c5b0db4cbb34293 100644
--- a/test/cctest/compiler/test-code-stub-assembler.cc
+++ b/test/cctest/compiler/test-code-stub-assembler.cc
@@ -246,8 +246,9 @@ TEST(FixedArrayAccessSmiIndex) {
   CodeStubAssemblerTester m(isolate, descriptor);
   Handle<FixedArray> array = isolate->factory()->NewFixedArray(5);
   array->set(4, Smi::FromInt(733));
-  m.Return(m.LoadFixedArrayElementSmiIndex(m.HeapConstant(array),
-                                           m.SmiTag(m.Int32Constant(4))));
+  m.Return(m.LoadFixedArrayElement(m.HeapConstant(array),
+                                   m.SmiTag(m.Int32Constant(4)), 0,
+                                   CodeStubAssembler::SMI_PARAMETERS));
   Handle<Code> code = m.GenerateCode();
   FunctionTester ft(descriptor, code);
   MaybeHandle<Object> result = ft.Call();