[debugger] Various break-related functionality in test wrapper

src/runtime/runtime-function.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/frames-inl.h"
@@ skipping 37 matching lines @@
   DCHECK(args.length() == 1);
 
   CONVERT_ARG_CHECKED(JSFunction, f, 0);
   CHECK(f->RemovePrototype());
   f->shared()->SetConstructStub(
       *isolate->builtins()->ConstructedNonConstructable());
 
   return isolate->heap()->undefined_value();
 }
 
-
+// TODO(5530): Remove once uses in debug.js are gone.
 RUNTIME_FUNCTION(Runtime_FunctionGetScript) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
 
   if (function->IsJSFunction()) {
     Handle<Object> script(
         Handle<JSFunction>::cast(function)->shared()->script(), isolate);
     if (script->IsScript()) {
       return *Script::GetWrapper(Handle<Script>::cast(script));
     }
   }
   return isolate->heap()->undefined_value();
 }
 
+RUNTIME_FUNCTION(Runtime_FunctionGetScriptId) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(1, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
+
+  if (function->IsJSFunction()) {
+    Handle<Object> script(
+        Handle<JSFunction>::cast(function)->shared()->script(), isolate);
+    if (script->IsScript()) {
+      return Smi::FromInt(Handle<Script>::cast(script)->id());
+    }
+  }
+  return Smi::FromInt(-1);
+}
 
 RUNTIME_FUNCTION(Runtime_FunctionGetSourceCode) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
   if (function->IsJSFunction()) {
     return *Handle<JSFunction>::cast(function)->shared()->GetSourceCode();
   }
   return isolate->heap()->undefined_value();
 }
@@ skipping 203 matching lines @@
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, function, 0);
   return function->IsJSBoundFunction()
              ? *JSBoundFunction::ToString(
                    Handle<JSBoundFunction>::cast(function))
              : *JSFunction::ToString(Handle<JSFunction>::cast(function));
 }
 
 }  // namespace internal
 }  // namespace v8