IDevice: Add rootPath() method

May be useful for constructing other remote paths.

Change-Id: I83b647f657565bf99e507a1821cf1c3c49a100bb
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/devicesupport/idevice.cpp

@@ -773,6 +773,15 @@ void IDevice::setMachineType(MachineType machineType)
     d->machineType = machineType;
 }
 
+FilePath IDevice::rootPath() const
+{
+    FilePath root;
+    root.setScheme("device");
+    root.setHost(id().toString());
+    root.setPath("/");
+    return root;
+}
+
 FilePath IDevice::debugServerPath() const
 {
     return d->debugServerPath;

src/plugins/projectexplorer/devicesupport/idevice.h

@@ -208,6 +208,8 @@ public:
     MachineType machineType() const;
     void setMachineType(MachineType machineType);
 
+    Utils::FilePath rootPath() const;
+
     Utils::FilePath debugServerPath() const;
     void setDebugServerPath(const Utils::FilePath &path);