AutoTest: Unify framework and tool naming

Use the same name for the test framework or tool across
Qt Creator.

Change-Id: I3116644ab03cc46c2e9d7e8aa3b8af8a5386dba4
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/autotest/itestframework.h

@@ -53,6 +53,7 @@ public:
     virtual ~ITestBase() = default;
 
     virtual const char *name() const = 0;
+    virtual QString displayName() const = 0;
     virtual unsigned priority() const = 0;          // should this be modifyable?
     TestBaseType type() const { return m_type; }