Globally replace _T() with wxT().

Standardize on using a single macro across all wxWidgets sources and solve the name clash with Sun CC standard headers (see #10660).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/os2/combobox.cpp

@@ -140,7 +140,7 @@ bool wxComboBox::Create(
         lSstyle |= CBS_DROPDOWN;
 
 
-    if (!OS2CreateControl( _T("COMBOBOX")
+    if (!OS2CreateControl( wxT("COMBOBOX")
                           ,lSstyle
                          ))
         return false;