Utils: Fix build with MSVC with C++20

Rename process.h back to qtcprocess.h

MSVC's "threads" standard header includes <process.h>, and that ends up
including our process.h from Utils.

There already was a hacky workaround in place for a similar issue with
MINGW, but that doesn't work with MSVC because that doesn't have

Simply use a name that doesn't conflict.

Change-Id: I1159cd2096b4f2dbc4a1728d0131dd6edd30ebd3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/git/branchmodel.cpp

@@ -10,7 +10,7 @@
 #include <solutions/tasking/tasktreerunner.h>
 
 #include <utils/environment.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/qtcassert.h>
 #include <utils/stringutils.h>
 

src/plugins/git/branchview.cpp

@@ -21,7 +21,7 @@
 #include <utils/elidinglabel.h>
 #include <utils/fancylineedit.h>
 #include <utils/navigationtreeview.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/qtcassert.h>
 #include <utils/stylehelper.h>
 #include <utils/utilsicons.h>

src/plugins/git/changeselectiondialog.cpp

@@ -12,7 +12,7 @@
 #include <utils/completinglineedit.h>
 #include <utils/layoutbuilder.h>
 #include <utils/pathchooser.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/theme/theme.h>
 
 #include <QCompleter>

src/plugins/git/gerrit/gerritmodel.cpp

@@ -10,7 +10,7 @@
 
 #include <utils/algorithm.h>
 #include <utils/environment.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/processinterface.h>
 
 #include <QApplication>

src/plugins/git/gerrit/gerritplugin.cpp

@@ -22,7 +22,7 @@
 #include <coreplugin/vcsmanager.h>
 
 #include <utils/environment.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/processinterface.h>
 
 #include <vcsbase/vcsoutputwindow.h>

src/plugins/git/gitclient.cpp

@@ -27,7 +27,7 @@
 #include <utils/fileutils.h>
 #include <utils/hostosinfo.h>
 #include <utils/mimeutils.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/qtcassert.h>
 #include <utils/temporaryfile.h>
 #include <utils/theme/theme.h>

src/plugins/git/gitgrep.cpp

@@ -17,7 +17,7 @@
 #include <utils/environment.h>
 #include <utils/fancylineedit.h>
 #include <utils/filesearch.h>
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 #include <utils/qtcassert.h>
 
 #include <QCheckBox>

src/plugins/git/mergetool.h

@@ -3,7 +3,7 @@
 
 #pragma once
 
-#include <utils/process.h>
+#include <utils/qtcprocess.h>
 
 #include <QObject>
 #include <QStringList>