[turbofan] Add support for JSArrayBufferView intrinsics.

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index d139e674ff808a5c371a7604990ac0e768b91055..43f4dfc4c6cb2904683b666319e405177837428e 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -21,6 +21,7 @@ namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
+struct FieldAccess;
 class JSOperatorBuilder;
 class JSGraph;
 class SimplifiedOperatorBuilder;
@@ -63,6 +64,7 @@ class V8_EXPORT_PRIVATE JSIntrinsicLowering final
 
   // TODO(turbofan): typedarray.js support; drop once TypedArrays are
   // converted to proper CodeStubAssembler based builtins.
+  Reduction ReduceArrayBufferViewField(Node* node, FieldAccess const& access);
   Reduction ReduceMaxSmi(Node* node);
   Reduction ReduceTypedArrayMaxSizeInHeap(Node* node);