DevTools: added console warning when call to document.write() from async script is ignored

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index 8b7633901a08b68c521017b2fd2ff03441dd210d..199b5b2c0cfb44da621eafaf28364f26ab9d6a99 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -2557,8 +2557,11 @@ void Document::write(const SegmentedString& text, Document* ownerDocument)
        return;
 
     bool hasInsertionPoint = m_parser && m_parser->hasInsertionPoint();
-    if (!hasInsertionPoint && m_ignoreDestructiveWriteCount)
+
+    if (!hasInsertionPoint && m_ignoreDestructiveWriteCount) {
+        addConsoleMessage(JSMessageSource, WarningMessageLevel, ExceptionMessages::failedToExecute("write", "Document", "It isn't possible to write into a document from an asynchronously-loaded external script unless it is explicitly opened."));
         return;
+    }
 
     if (!hasInsertionPoint)
         open(ownerDocument);