[turbofan] Minor cleanups to lowering of typed array loads/stores.

test/unittests/compiler/js-typed-lowering-unittest.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/js-typed-lowering.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node-properties-inl.h"
@@ skipping 84 matching lines @@
     }
     node->AppendInput(zone(), effect);
     node->AppendInput(zone(), control);
     Reduction r = Reduce(node);
 
     ASSERT_TRUE(r.Changed());
     EXPECT_THAT(
         r.replacement(),
         IsLoadElement(AccessBuilder::ForTypedArrayElement(type, true),
                       IsIntPtrConstant(bit_cast<intptr_t>(&backing_store[0])),
-                      key, IsInt32Constant(static_cast<int>(kLength)), effect,
-                      control));
+                      key, IsNumberConstant(static_cast<double>(kLength)),
+                      effect, control));
   }
 }
 
 
 // -----------------------------------------------------------------------------
 // JSStoreProperty
 
 
 TEST_F(JSTypedLoweringTest, JSStorePropertyToExternalTypedArray) {
   const size_t kLength = 17;
@@ skipping 18 matching lines @@
       }
       node->AppendInput(zone(), effect);
       node->AppendInput(zone(), control);
       Reduction r = Reduce(node);
 
       ASSERT_TRUE(r.Changed());
       EXPECT_THAT(r.replacement(),
                   IsStoreElement(
                       AccessBuilder::ForTypedArrayElement(type, true),
                       IsIntPtrConstant(bit_cast<intptr_t>(&backing_store[0])),
-                      key, IsInt32Constant(static_cast<int>(kLength)), value,
-                      effect, control));
+                      key, IsNumberConstant(static_cast<double>(kLength)),
+                      value, effect, control));
     }
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8