--debug-code: sanity-checking instrumentation for Lithium object accesses

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 9e974138926d711ee4f5033364152d836d3d60a1..adc6e09dffea535b93a14f82047b67b5864af765 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -558,7 +558,9 @@ HLoadNamedField* CodeStubGraphBuilderBase::BuildLoadNamedField(
     int offset,
     bool is_inobject) {
   HObjectAccess access = is_inobject
-      ? HObjectAccess::ForObservableJSObjectOffset(offset, representation)
+      ? HObjectAccess::ForObservableJSObjectOffset(offset,
+                                                   HObjectAccess::FOR_FIELD,
+                                                   representation)
       : HObjectAccess::ForBackingStoreOffset(offset, representation);
   if (representation.IsDouble()) {
     // Load the heap number.