QtcProcess: Limit the inclusion of qtcprocess.h

Move the rest of QtcProcess enums to processenums.h.
Move ExitCodeInterpreter into processenums.h.
Remove superfluous Utils:: prefix.

Change-Id: Iaa596f353d33d6930085a621b114cc15a35caa80
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/plugins/debugger/debuggeritem.cpp

@@ -185,7 +185,7 @@ void DebuggerItem::reinitializeFromFile(const Environment &sysEnv, QString *erro
     proc.setCommand({m_command, {version}});
     proc.runBlocking();
     const QString output = proc.allOutput().trimmed();
-    if (proc.result() != QtcProcess::FinishedWithSuccess) {
+    if (proc.result() != ProcessResult::FinishedWithSuccess) {
         if (error)
             *error = output;
         m_engineType = NoEngineType;