[api] Remove previously deprecated Function::GetDisplayName().

The method was scheduled for removal in M92, as finaly part of the
fn.displayName support removal.

Fixed: chromium:1177685
Doc: https://bit.ly/devtools-function-displayName-removal
Change-Id: I243dd6c9849a6f39e76dd003300b639bfd8df604
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2821954
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73930}

include/v8.h

@@ -4772,17 +4772,6 @@ class V8_EXPORT Function : public Object {
    */
   Local<Value> GetDebugName() const;
 
-  /**
-   * User-defined name assigned to the "displayName" property of this function.
-   * Used to facilitate debugging and profiling of JavaScript code.
-   */
-  V8_DEPRECATED(
-      "Use v8::Object::Get() instead to look up \"displayName\". "
-      "V8 and DevTools no longer use \"displayName\" in stack "
-      "traces, but the standard \"name\" property. "
-      "See http://crbug.com/1177685.")
-  Local<Value> GetDisplayName() const;
-
   /**
    * Returns zero based line number of function body and
    * kLineOffsetNotFound if no information available.

src/api/api.cc

@@ -5043,25 +5043,6 @@ Local<Value> Function::GetDebugName() const {
   return Utils::ToLocal(i::Handle<i::Object>(*name, self->GetIsolate()));
 }
 
-Local<Value> Function::GetDisplayName() const {
-  auto self = Utils::OpenHandle(this);
-  i::Isolate* isolate = self->GetIsolate();
-  ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate);
-  if (!self->IsJSFunction()) {
-    return ToApiHandle<Primitive>(isolate->factory()->undefined_value());
-  }
-  auto func = i::Handle<i::JSFunction>::cast(self);
-  i::Handle<i::String> property_name =
-      isolate->factory()->InternalizeString(i::StaticCharVector("displayName"));
-  i::Handle<i::Object> value =
-      i::JSReceiver::GetDataProperty(func, property_name);
-  if (value->IsString()) {
-    i::Handle<i::String> name = i::Handle<i::String>::cast(value);
-    if (name->length() > 0) return Utils::ToLocal(name);
-  }
-  return ToApiHandle<Primitive>(isolate->factory()->undefined_value());
-}
-
 ScriptOrigin Function::GetScriptOrigin() const {
   auto self = Utils::OpenHandle(this);
   auto isolate = reinterpret_cast<v8::Isolate*>(self->GetIsolate());