XFA: merge patch from CL 792953005, fix most VC++ warnings

xfa/src/fxfa/src/parser/xfa_localevalue.cpp

Index: xfa/src/fxfa/src/parser/xfa_localevalue.cpp
diff --git a/xfa/src/fxfa/src/parser/xfa_localevalue.cpp b/xfa/src/fxfa/src/parser/xfa_localevalue.cpp
index 6d55defac35490206b009e1de0b417dfe33b6a91..46ea47dc5d00ce27192e3816e7e18b099c521399 100644
--- a/xfa/src/fxfa/src/parser/xfa_localevalue.cpp
+++ b/xfa/src/fxfa/src/parser/xfa_localevalue.cpp
@@ -650,7 +650,7 @@ FX_BOOL CXFA_LocaleValue::ValidateCanonicalDate(const CFX_WideString& wsDate, CF
         return FALSE;
     }
     CFX_Unitime ut;
-    ut.Set(wYear, wMonth, wDay);
+    ut.Set(wYear, static_cast<FX_BYTE>(wMonth), static_cast<FX_BYTE>(wDay));
     unDate = unDate + ut;
     return TRUE;
 }