[d8] Remove deprecated calls from d8-readline

src/d8-readline.cc

 // Copyright 2012 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 <stdio.h>  // NOLINT
 #include <string.h> // NOLINT
 #include <readline/readline.h> // NOLINT
 #include <readline/history.h> // NOLINT
 
 // The readline includes leaves RETURN defined which breaks V8 compilation.
@@ skipping 67 matching lines @@
 bool ReadLineEditor::Close() {
   return write_history(kHistoryFileName) == 0;
 }
 
 
 Local<String> ReadLineEditor::Prompt(const char* prompt) {
   char* result = NULL;
   result = readline(prompt);
   if (result == NULL) return Local<String>();
   AddHistory(result);
-  return String::NewFromUtf8(isolate_, result);
+  return String::NewFromUtf8(isolate_, result, NewStringType::kNormal)
+      .ToLocalChecked();
 }
 
 
 void ReadLineEditor::AddHistory(const char* str) {
   // Do not record empty input.
   if (strlen(str) == 0) return;
   // Remove duplicate history entry.
   history_set_pos(history_length-1);
   if (current_history()) {
     do {
@@ skipping 17 matching lines @@
 }
 
 
 char* ReadLineEditor::CompletionGenerator(const char* text, int state) {
   static unsigned current_index;
   static Global<Array> current_completions;
   Isolate* isolate = read_line_editor.isolate_;
   HandleScope scope(isolate);
   Local<Array> completions;
   if (state == 0) {
-    Local<String> full_text = String::NewFromUtf8(isolate,
-                                                  rl_line_buffer,
-                                                  String::kNormalString,
-                                                  rl_point);
-    completions = Shell::GetCompletions(isolate,
-                                        String::NewFromUtf8(isolate, text),
-                                        full_text);
+    Local<String> full_text =
+        String::NewFromUtf8(isolate, rl_line_buffer, NewStringType::kNormal,
+                            rl_point)
+            .ToLocalChecked();
+    completions = Shell::GetCompletions(
+        isolate, String::NewFromUtf8(isolate, text, NewStringType::kNormal)
+                     .ToLocalChecked(),
+        full_text);
     current_completions.Reset(isolate, completions);
     current_index = 0;
   } else {
     completions = Local<Array>::New(isolate, current_completions);
   }
   if (current_index < completions->Length()) {
+    Local<Context> context(isolate->GetCurrentContext());
     Local<Integer> index = Integer::New(isolate, current_index);
-    Local<Value> str_obj = completions->Get(index);
+    Local<Value> str_obj = completions->Get(context, index).ToLocalChecked();
     current_index++;
     String::Utf8Value str(str_obj);
     return strdup(*str);
   } else {
     current_completions.Reset();
     return NULL;
   }
 }
 #endif  // V8_SHARED
 
 
 }  // namespace v8