Getting rid of more (FX_LPCWSTR) casts and fixing two bugs revealed by this.

core/src/fxcrt/fx_xml_parser.cpp

Index: core/src/fxcrt/fx_xml_parser.cpp
diff --git a/core/src/fxcrt/fx_xml_parser.cpp b/core/src/fxcrt/fx_xml_parser.cpp
index 26c6540350e5566fd773a36ba2ca219668e0385c..8049a5587e65566f99480f63978122082f617e9a 100644
--- a/core/src/fxcrt/fx_xml_parser.cpp
+++ b/core/src/fxcrt/fx_xml_parser.cpp
@@ -670,18 +670,13 @@ FX_BOOL CXML_Element::GetAttrValue(FX_BSTR name, CFX_WideString& attribute) cons
 {
     CFX_ByteStringC bsSpace, bsName;
     FX_XML_SplitQualifiedName(name, bsSpace, bsName);
-    const CFX_WideString* pValue = m_AttrMap.Lookup(bsSpace, bsName);
-    if (pValue) {
-        attribute = CFX_WideString((FX_LPCWSTR)pValue, pValue->GetLength());
-        return TRUE;
-    }
-    return FALSE;
+    return GetAttrValue(bsSpace, bsName, attribute);
 }
 FX_BOOL CXML_Element::GetAttrValue(FX_BSTR space, FX_BSTR name, CFX_WideString& attribute) const
 {
     const CFX_WideString* pValue = m_AttrMap.Lookup(space, name);
     if (pValue) {
-        attribute = CFX_WideString((FX_LPCWSTR)pValue, pValue->GetLength());
+        attribute = *pValue;
         return TRUE;
     }
     return FALSE;