Moving relevant tests to corelib/plugin

Task-number: QTBUG-21066

Change-Id: I918f6ef6fb825d7cf94d6b42322b2c2eb5c52aaa
Reviewed-on: http://codereview.qt.nokia.com/3604
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>

tests/auto/corelib.pro

@@ -19,15 +19,12 @@ SUBDIRS=\
    qexplicitlyshareddatapointer \
    qfreelist \
    qhash \
-   qlibrary \
    qline \
    qmap \
    qmargins \
    qmutex \
    qmutexlocker \
    qobjectrace \
-   qplugin \
-   qpluginloader \
    qpoint \
    qqueue \
    qreadlocker \
@@ -61,7 +58,6 @@ SUBDIRS=\
    qtimeline \
    qtmd5 \
    qtokenautomaton \
-   quuid \
    qvarlengtharray \
    qvector \
    qwaitcondition \

tests/auto/corelib/corelib.pro

@@ -5,4 +5,5 @@ SUBDIRS=\
    concurrent \
    global \
    io \
-   kernel
+   kernel \
+   plugin

tests/auto/corelib/plugin/plugin.pro

@@ -0,0 +1,6 @@
+TEMPLATE=subdirs
+SUBDIRS=\
+    qlibrary \
+    qplugin \
+    qpluginloader \
+    quuid