Make CFX_WideString(const CFX_WideString&) explicit.

xfa/fxfa/parser/xfa_script_nodehelper.cpp

Index: xfa/fxfa/parser/xfa_script_nodehelper.cpp
diff --git a/xfa/fxfa/parser/xfa_script_nodehelper.cpp b/xfa/fxfa/parser/xfa_script_nodehelper.cpp
index 96ecc5a125a9e009017379fe8bf240a84cc61ef0..93bf40e324fcc2d8d1b20729e34eed7bb5996167 100644
--- a/xfa/fxfa/parser/xfa_script_nodehelper.cpp
+++ b/xfa/fxfa/parser/xfa_script_nodehelper.cpp
@@ -308,9 +308,8 @@ FX_BOOL CXFA_NodeHelper::XFA_NodeIsTransparent(CXFA_Node* refNode) {
 FX_BOOL CXFA_NodeHelper::XFA_CreateNode_ForCondition(
     CFX_WideString& wsCondition) {
   int32_t iLen = wsCondition.GetLength();
-  CFX_WideString wsIndex = FX_WSTRC(L"0");
+  CFX_WideString wsIndex(L"0");
   FX_BOOL bAll = FALSE;
-
   if (iLen == 0) {
     m_iCreateFlag = XFA_RESOLVENODE_RSTYPE_CreateNodeOne;
     return FALSE;