Update StringObject comment in object.h (#5011)

* m_ArrayLength is no longer present (I did a search of the source and couldn't find it), so this comment is misleading.
* Also removing mis-leading comment about high two bits of field

diff --git a/src/vm/object.h b/src/vm/object.h
index ff2e0b4..2da0922 100644 (file)
--- a/src/vm/object.h
+++ b/src/vm/object.h
@@ -1060,11 +1060,7 @@ typedef PTR_StringObject STRINGREF;
  *
  * Special String implementation for performance.   
  *
- *   m_ArrayLength  - Length of buffer (m_Characters) in number of WCHARs
- *   m_StringLength - Length of string in number of WCHARs, may be smaller
- *                    than the m_ArrayLength implying that there is extra
- *                    space at the end. The high two bits of this field are used
- *                    to indicate if the String has characters higher than 0x7F
+ *   m_StringLength - Length of string in number of WCHARs
  *   m_Characters   - The string buffer
  *
  */