Editors: Move id() from editor to document.

Change-Id: Ib81076842ab1c16832224790194b001206404d64
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/cmakeprojectmanager/cmakeproject.cpp

@@ -763,6 +763,7 @@ void CMakeProject::createUiCodeModelSupport()
 CMakeFile::CMakeFile(CMakeProject *parent, QString fileName)
     : Core::IDocument(parent), m_project(parent)
 {
+    setId("Cmake.ProjectFile");
     setFilePath(fileName);
 }