Preliminary lowering of typed array loads in TF.

src/compiler/js-typed-lowering.h

Index: src/compiler/js-typed-lowering.h
diff --git a/src/compiler/js-typed-lowering.h b/src/compiler/js-typed-lowering.h
index 98888df45d84d7255e03fc71ad56fe8719616015..3e98b796b2b1f7d468597b99acb1b6cb892916d4 100644
--- a/src/compiler/js-typed-lowering.h
+++ b/src/compiler/js-typed-lowering.h
@@ -39,6 +39,7 @@ class JSTypedLowering : public Reducer {
   Reduction ReplaceWith(Node* node) { return Reducer::Replace(node); }
   Reduction ReduceJSAdd(Node* node);
   Reduction ReduceJSComparison(Node* node);
+  Reduction ReduceJSPropertyLoad(Node* node);
   Reduction ReduceJSEqual(Node* node, bool invert);
   Reduction ReduceJSStrictEqual(Node* node, bool invert);
   Reduction ReduceJSToNumberInput(Node* input);