[interpreter, debugger] support debug breaks via bytecode array copy

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 2bf21a2c6d82a9b1191b83c1f16dc5b7401d81a5..8f406602acdc04c7267e4e8396dd7054893bc664 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -15269,6 +15269,12 @@ void BytecodeArray::Disassemble(std::ostream& os) {
 #endif
 }
 
+void BytecodeArray::CopyTo(BytecodeArray* to) {
+  BytecodeArray* from = this;
+  DCHECK_EQ(from->length(), to->length());
+  CopyBytes(to->GetFirstBytecodeAddress(), from->GetFirstBytecodeAddress(),
+            from->length());
+}
 
 // static
 void JSArray::Initialize(Handle<JSArray> array, int capacity, int length) {