Only populate line number in case parsing synchronously.

Source/core/dom/ScriptableDocumentParser.h

Index: Source/core/dom/ScriptableDocumentParser.h
diff --git a/Source/core/dom/ScriptableDocumentParser.h b/Source/core/dom/ScriptableDocumentParser.h
index 70773013d9ebe03ad58abc5fefe2d61d3bd779a7..80d10b8f85902d4734416ab9fc202341d72ce609 100644
--- a/Source/core/dom/ScriptableDocumentParser.h
+++ b/Source/core/dom/ScriptableDocumentParser.h
@@ -45,6 +45,7 @@ public:
     virtual bool isWaitingForScripts() const = 0;
 
     // These are used to expose the current line/column to the scripting system.
+    virtual bool hasLineNumber() const = 0;

[rmcilroy, 2014/12/12 14:18:31]

Maybe isParsingAtLineNumber or similar to be explicit that this means that the
current line number is something we are currently dealing with?

[pfeldman, 2014/12/12 17:21:06]

Done.

     virtual OrdinalNumber lineNumber() const = 0;
     virtual TextPosition textPosition() const = 0;