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/dcmemory.cpp

@@ -47,7 +47,7 @@ wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap )
 wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxDC *pOldDC)
         : wxPMDCImpl( owner ) 
 {
-    wxCHECK_RET( pOldDC, _T("NULL dc in wxMemoryDC ctor") );
+    wxCHECK_RET( pOldDC, wxT("NULL dc in wxMemoryDC ctor") );
 
     CreateCompatible(pOldDC);
     Init();