[objects] Extract DebugInfo and BreakPointInfo to own file

src/debug/debug.cc

Index: src/debug/debug.cc
diff --git a/src/debug/debug.cc b/src/debug/debug.cc
index a914d2e3812d017a7c45263c5915d551b9c6ed7e..5fc284728f90ac0879185cfae985966b11204288 100644
--- a/src/debug/debug.cc
+++ b/src/debug/debug.cc
@@ -28,6 +28,7 @@
 #include "src/list.h"
 #include "src/log.h"
 #include "src/messages.h"
+#include "src/objects/debug-objects-inl.h"
 #include "src/snapshot/natives.h"
 #include "src/wasm/wasm-module.h"
 #include "src/wasm/wasm-objects.h"
@@ -248,6 +249,11 @@ void CodeBreakIterator::SkipToPosition(int position,
   SkipTo(it.BreakIndexFromPosition(position, alignment));
 }
 
+int CodeBreakIterator::code_offset() {
+  return static_cast<int>(rinfo()->pc() -
+                          debug_info_->DebugCode()->instruction_start());
+}
+
 void CodeBreakIterator::SetDebugBreak() {
   DebugBreakType debug_break_type = GetDebugBreakType();
   DCHECK(debug_break_type >= DEBUG_BREAK_SLOT);