fix css::uno's throwing Reference constructors

The destructor of the Reference class depends on its _pInterface member being set,
but some constructors skip this when an exception was thrown. Always initializing
them properly while avoiding a rethrow is cheap and safe.

Fixed-By: Herbert Dürr, Andre Fischer

cppu/inc/com/sun/star/uno/Reference.hxx

@@ -171,18 +171,21 @@ inline Reference< interface_type >::Reference( const Any & rAny, UnoReference_Qu
 template< class interface_type >
 inline Reference< interface_type >::Reference( const BaseReference & rRef, UnoReference_QueryThrow ) SAL_THROW( (RuntimeException) )
 {
+    _pInterface = NULL;
     _pInterface = iquery_throw( rRef.get() );
 }
 //__________________________________________________________________________________________________
 template< class interface_type >
 inline Reference< interface_type >::Reference( XInterface * pInterface, UnoReference_QueryThrow ) SAL_THROW( (RuntimeException) )
 {
+    _pInterface = NULL;
     _pInterface = iquery_throw( pInterface );
 }
 //__________________________________________________________________________________________________
 template< class interface_type >
 inline Reference< interface_type >::Reference( const Any & rAny, UnoReference_QueryThrow ) SAL_THROW( (RuntimeException) )
 {
+    _pInterface = NULL;
     _pInterface = iquery_throw( typelib_TypeClass_INTERFACE == rAny.pType->eTypeClass
                                 ? static_cast< XInterface * >( rAny.pReserved ) : 0 );
 }
@@ -190,12 +193,14 @@ inline Reference< interface_type >::Reference( const Any & rAny, UnoReference_Qu
 template< class interface_type >
 inline Reference< interface_type >::Reference( const Reference< interface_type > & rRef, UnoReference_SetThrow ) SAL_THROW( (RuntimeException) )
 {
+    _pInterface = NULL;
     _pInterface = iset_throw( rRef.get() );
 }
 //__________________________________________________________________________________________________
 template< class interface_type >
 inline Reference< interface_type >::Reference( interface_type * pInterface, UnoReference_SetThrow ) SAL_THROW( (RuntimeException) )
 {
+    _pInterface = NULL;
     _pInterface = iset_throw( pInterface );
 }
 #endif