Shortcut common case of calling same-env component_getFactory fn

Change-Id: I7f5d31c3b3e128b2df4d83c915673bf7b5d2ab8c

cppuhelper/source/shlib.cxx

@@ -188,7 +188,16 @@ Reference< XInterface > invokeComponentFactory(
             fprintf(stderr, "invokeComponentFactory envDcp:%s implName:%s modPath:%s\n", envDcp.getStr(), implName.getStr(), modPath.getStr());
         }
 #endif
-
+        if (env.get() == currentEnv.get())
+        {
+            xRet.set(
+                static_cast<css::uno::XInterface *>(
+                    (*reinterpret_cast<component_getFactoryFunc>(pGetter))(
+                        aImplName.getStr(), xMgr.get(), 0)),
+                SAL_NO_ACQUIRE);
+        }
+        else
+        {
             Mapping aCurrent2Env( currentEnv, env );
             Mapping aEnv2Current( env, currentEnv );
 
@@ -230,6 +239,7 @@ Reference< XInterface > invokeComponentFactory(
                     "cannot get uno mappings: C++ <=> UNO!";
             }
         }
+    }
     else
     {
         rExcMsg = "cannot get uno environments!";