Inline internal getters for typed arrays & friends.

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 1e6ac19bf7f42dcedcd7fe1a953168967002bdfc..81ecb890bf9c22551202bb6b2e51d19c0abd10ac 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -6025,6 +6025,11 @@ class HObjectAccess V8_FINAL {
         JSArrayBuffer::kBackingStoreOffset, Representation::External());
   }
 
+  static HObjectAccess ForJSArrayBufferByteLength() {
+    return HObjectAccess::ForObservableJSObjectOffset(
+        JSArrayBuffer::kByteLengthOffset, Representation::Tagged());
+  }
+
   static HObjectAccess ForExternalArrayExternalPointer() {
     return HObjectAccess::ForObservableJSObjectOffset(
         ExternalArray::kExternalPointerOffset, Representation::External());