fix some unix warnning

intl/uconv/ucvlatin/ns1ByteToUnicodeBase.h

@@ -37,7 +37,7 @@ public:
   /**
    * Class destructor.
    */
-  ~ns1ByteToUnicodeBase();
+  virtual ~ns1ByteToUnicodeBase();
 
   //--------------------------------------------------------------------
   // Interface nsIUnicodeDecoder [declaration]

intl/uconv/ucvlatin/nsCP1253ToUnicode.h

@@ -39,7 +39,7 @@ public:
   /**
    * Class destructor.
    */
-  ~nsCP1253ToUnicode();
+  virtual ~nsCP1253ToUnicode();
 
   /**
    * Static class constructor.

intl/uconv/ucvlatin/nsISO88597ToUnicode.h

@@ -39,7 +39,7 @@ public:
   /**
    * Class destructor.
    */
-  ~nsISO88597ToUnicode();
+  virtual ~nsISO88597ToUnicode();
 
   /**
    * Static class constructor.

intl/uconv/ucvlatin/nsLatin1ToUnicode.h

@@ -55,7 +55,7 @@ public:
   /**
    * Class destructor.
    */
-  ~nsLatin1ToUnicode();
+  virtual ~nsLatin1ToUnicode();
 
   /**
    * Static class constructor.

intl/uconv/ucvlatin/nsUCvLatinDll.cpp

@@ -150,7 +150,7 @@ extern "C" NS_EXPORT nsresult NSGetFactory(nsISupports* serviceMgr,
   nsConverterFactory * fac;
   FactoryData * data;
 
-  for (PRInt32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
+  for (PRUint32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
     data = &(g_FactoryData[i]);
     if (aClass.Equals(*(data->mCID))) {
       fac = new nsConverterFactory(data);
@@ -171,7 +171,7 @@ extern "C" NS_EXPORT nsresult NSRegisterSelf(nsISupports* serviceMgr, const char
 {
   nsresult res;
 
-  for (PRInt32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
+  for (PRUint32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
     res = nsRepository::RegisterComponent(*(g_FactoryData[i].mCID), NULL, NULL,
       path, PR_TRUE, PR_TRUE);
     if(NS_FAILED(res) && (NS_ERROR_FACTORY_EXISTS != res)) return res;
@@ -184,7 +184,7 @@ extern "C" NS_EXPORT nsresult NSUnregisterSelf(nsISupports* serviceMgr, const ch
 {
   nsresult res;
 
-  for (PRInt32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
+  for (PRUint32 i=0; i<ARRAY_SIZE(g_FactoryData); i++) {
     res = nsRepository::UnregisterFactory(*(g_FactoryData[i].mCID), path);
     if(NS_FAILED(res)) return res;
   }