wxOS2 with Open Watcom: correct PCH usage, missing headers, warning fixes, source cleaning and other Watcom adjustements.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34900 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/debugrpt.cpp

@@ -103,7 +103,7 @@ TextElement(wxXmlNode *node, const wxChar *name, const wxString& value)
 {
     wxXmlNode *nodeChild = new wxXmlNode(wxXML_ELEMENT_NODE, name);
     node->AddChild(nodeChild);
-    nodeChild->AddChild(new wxXmlNode(wxXML_TEXT_NODE, _T(""), value));
+    nodeChild->AddChild(new wxXmlNode(wxXML_TEXT_NODE, wxEmptyString, value));
 }
 
 static inline void
@@ -690,4 +690,3 @@ bool wxDebugReportUpload::DoProcess()
 #endif // wxUSE_ZIPSTREAM
 
 #endif // wxUSE_DEBUGREPORT
-