Walk internal ArtField/ArtMethod pointers

During structural class redefinition we sometimes need to update some
of the ArtMethod/ArtField pointers held by runtime frames. This adds
support for doing this through a StackReflectiveHandleScope similar to
the StackHandleScope used for holding object references. This also
updates various places where reflective-handles to ArtMethods and
ArtFields are needed, for example the JniIdManager, field Read/Write
operations and events, field resolution, and the old debugger.

Test: ./test.py --host
Bug: 134162467

Change-Id: I4ea73e85956a07735c6d7b125c5828a4233670bc

1 files changed, 9 insertions, 0 deletions

diff --git a/runtime/reflective_value_visitor.cc b/runtime/reflective_value_visitor.cc
index 69fd51ff6e..5a288d38be 100644
--- a/runtime/reflective_value_visitor.cc
+++ b/runtime/reflective_value_visitor.cc
@@ -42,4 +42,13 @@ void JniIdReflectiveSourceInfo<jmethodID>::Describe(std::ostream& os) const {
   os << " jmethodID=" << reinterpret_cast<uintptr_t>(id_);
 }
 
+void ReflectiveHandleScopeSourceInfo::Describe(std::ostream& os) const {
+  ReflectionSourceInfo::Describe(os);
+  os << " source= (" << source_ << ") ";
+  if (source_ == nullptr) {
+    os << "nullptr";
+  } else {
+    os << *source_;
+  }
+}
 }  // namespace art