[inspector] move console to builtins

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index ae8d71b9f8e80f6f63a32ab0b9120838ad55acaf..29d63ce047af6136605ba62118069f96f2996096 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -32,6 +32,10 @@ namespace base {
 class RandomNumberGenerator;
 }
 
+namespace debug {
+class ConsoleDelegate;
+}
+
 namespace internal {
 
 class AccessCompilerData;
@@ -737,6 +741,11 @@ class Isolate {
     return MaybeHandle<T>();
   }
 
+  void set_console_delegate(debug::ConsoleDelegate* delegate) {
+    console_delegate_ = delegate;
+  }
+  debug::ConsoleDelegate* console_delegate() { return console_delegate_; }
+
   // Re-throw an exception.  This involves no error reporting since error
   // reporting was handled when the exception was thrown originally.
   Object* ReThrow(Object* exception);
@@ -1532,6 +1541,8 @@ class Isolate {
 
   CancelableTaskManager* cancelable_task_manager_;
 
+  debug::ConsoleDelegate* console_delegate_ = nullptr;
+
   v8::Isolate::AbortOnUncaughtExceptionCallback
       abort_on_uncaught_exception_callback_;