Throw on range error when creating a string via API.

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 753b4716b0f6e5b778c7853ea823cbeaa581ffe9..7b5cca51196abeac5012ae59c0cbc71c24d634c0 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -21984,3 +21984,35 @@ TEST(StreamingScriptWithSourceMappingURLInTheMiddle) {
   RunStreamingTest(chunks, v8::ScriptCompiler::StreamedSource::UTF8, true, NULL,
                    "bar2.js");
 }
+
+
+TEST(NewStringRangeError) {
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope handle_scope(isolate);
+  LocalContext env;
+  const int length = i::String::kMaxLength + 1;
+  const int buffer_size = length * sizeof(uint16_t);
+  void* buffer = malloc(buffer_size);
+  memset(buffer, 'A', buffer_size);
+  {
+    v8::TryCatch try_catch;
+    char* data = reinterpret_cast<char*>(buffer);
+    CHECK(v8::String::NewFromUtf8(isolate, data, v8::String::kNormalString,
+                                  length).IsEmpty());
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    v8::TryCatch try_catch;
+    uint8_t* data = reinterpret_cast<uint8_t*>(buffer);
+    CHECK(v8::String::NewFromOneByte(isolate, data, v8::String::kNormalString,
+                                     length).IsEmpty());
+    CHECK(try_catch.HasCaught());
+  }
+  {
+    v8::TryCatch try_catch;
+    uint16_t* data = reinterpret_cast<uint16_t*>(buffer);
+    CHECK(v8::String::NewFromTwoByte(isolate, data, v8::String::kNormalString,
+                                     length).IsEmpty());
+    CHECK(try_catch.HasCaught());
+  }
+}