Internalize strings in-place

src/heap/objects-visiting-inl.h

Index: src/heap/objects-visiting-inl.h
diff --git a/src/heap/objects-visiting-inl.h b/src/heap/objects-visiting-inl.h
index d86406bf5f77c204957dce60d4125974eff17f0e..53a1310ed9ca4a210988166a1b94f962a7ba99e1 100644
--- a/src/heap/objects-visiting-inl.h
+++ b/src/heap/objects-visiting-inl.h
@@ -31,6 +31,10 @@ void StaticNewSpaceVisitor<StaticVisitor>::Initialize() {
       kVisitConsString,
       &FixedBodyVisitor<StaticVisitor, ConsString::BodyDescriptor, int>::Visit);
 
+  table_.Register(
+      kVisitThinString,
+      &FixedBodyVisitor<StaticVisitor, ThinString::BodyDescriptor, int>::Visit);
+
   table_.Register(kVisitSlicedString,
                   &FixedBodyVisitor<StaticVisitor, SlicedString::BodyDescriptor,
                                     int>::Visit);
@@ -117,6 +121,10 @@ void StaticMarkingVisitor<StaticVisitor>::Initialize() {
                   &FixedBodyVisitor<StaticVisitor, ConsString::BodyDescriptor,
                                     void>::Visit);
 
+  table_.Register(kVisitThinString,
+                  &FixedBodyVisitor<StaticVisitor, ThinString::BodyDescriptor,
+                                    void>::Visit);
+
   table_.Register(kVisitSlicedString,
                   &FixedBodyVisitor<StaticVisitor, SlicedString::BodyDescriptor,
                                     void>::Visit);