New QTC_CHECK warning replacing QTC_ASSERT(x, /**/)

Warn if the condition fails, but otherwise don't change the execution
flow.

Change-Id: Id7b14c745109b66960add967b2a4ef8d31e1a546
Reviewed-on: http://codereview.qt.nokia.com/2389
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/debugger/gdb/symbian.cpp

@@ -59,7 +59,7 @@ MemoryRange::MemoryRange(uint f, uint t)
 bool MemoryRange::intersects(const MemoryRange &other) const
 {
     Q_UNUSED(other);
-    QTC_ASSERT(false, /**/);
+    QTC_CHECK(false);
     return false; // FIXME
 }