ProjectExplorer: Use Core::Id as RunMode "enum values"

This provides a way for third-party plugins to implement run
modes without the need to add a value to the central enum or
using manual workarounds like RunMode(*(int*)&someUniqueObject).

Instead of centrally defined enum values this uses Core::Id that could
be defined anywhere.

Change-Id: Ic350e3d8dbb8042c61b2d4ffec993ca151f53099
Reviewed-by: Daniel Teske <daniel.teske@theqtcompany.com>
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/android/androidruncontrol.cpp

@@ -42,8 +42,8 @@ namespace Android {
 namespace Internal {
 
 AndroidRunControl::AndroidRunControl(AndroidRunConfiguration *rc)
-    : RunControl(rc, NormalRunMode)
-    , m_runner(new AndroidRunner(this, rc, NormalRunMode))
+    : RunControl(rc, ProjectExplorer::Constants::NORMAL_RUN_MODE)
+    , m_runner(new AndroidRunner(this, rc, ProjectExplorer::Constants::NORMAL_RUN_MODE))
     , m_running(false)
 {
     setIcon(QLatin1String(ProjectExplorer::Constants::ICON_RUN_SMALL));