[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 a3e868ab3c183257d4129913100c9ef99925ec1f..cc7751b9e7a38aa5afccb1068e40d227a8c57301 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -15178,6 +15178,12 @@ 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) {