swunolocking1: #i108161#: WeakReferenceHelper::operator=():

avoid creating a temporary WeakReferenceHelper for uno::Reference assignment.
 [according to callgrind this is 3 times faster]

cppuhelper/source/cc5_solaris_sparc.map

@@ -383,4 +383,5 @@ UDK_3.6 { # OOo 3.0
 UDK_3.7 { # OOo 3.3
     global:
         __1cEcppuLOWeakObjectbAdisposeWeakConnectionPoint6M_v_;
+        __1cDcomDsunEstarDunoTWeakReferenceHelper2G6Mrkn0DJReference4n0DKXInterface____r4_;
 } UDK_3.6;

cppuhelper/source/gcc3.map

@@ -377,5 +377,6 @@ UDK_3.5 { # OOo 3.0
 UDK_3.6 { # OOo 3.3
     global:
         _ZN4cppu11OWeakObject26disposeWeakConnectionPointEv;
+        _ZN3com3sun4star3uno19WeakReferenceHelperaSERKNS2_9ReferenceINS2_10XInterfaceEEE;
 } UDK_3.5;
 

cppuhelper/source/weak.cxx

@@ -480,12 +480,21 @@ WeakReferenceHelper::WeakReferenceHelper(const WeakReferenceHelper& rWeakRef) SA
 }
 
 WeakReferenceHelper& WeakReferenceHelper::operator=(const WeakReferenceHelper& rWeakRef) SAL_THROW( () )
+{
+    if (this == &rWeakRef)
+    {
+        return *this;
+    }
+    Reference< XInterface > xInt( rWeakRef.get() );
+    return operator = ( xInt );
+}
+
+WeakReferenceHelper & SAL_CALL
+WeakReferenceHelper::operator= (const Reference< XInterface > & xInt)
+SAL_THROW( () )
 {
     try
     {
-    if (this != &rWeakRef)
-    {
-        Reference< XInterface > xInt( rWeakRef.get() );
         if (m_pImpl)
         {
             if (m_pImpl->m_XWeakConnectionPoint.is())
@@ -502,7 +511,6 @@ WeakReferenceHelper& WeakReferenceHelper::operator=(const WeakReferenceHelper& r
             m_pImpl->acquire();
         }
     }
-    }
     catch (RuntimeException &) { OSL_ASSERT( 0 ); } // assert here, but no unexpected()
     return *this;
 }