Revert "qapitrace: fix an inline string FIXME request"

This reverts commit 0d86efd, from
issue #244, due to two problems I just noticed:

- strcasestr doesn't exist on Windows, and there seems to be no easy
  replacement.

- ApiTraceCall::contains search the string in the whole call (not just
  the name)

gui/traceloader.cpp

@@ -406,11 +406,14 @@ bool TraceLoader::callContains(trace::Call *call,
                                const QString &str,
                                Qt::CaseSensitivity sensitivity)
 {
-    if (sensitivity == Qt::CaseSensitive) {
-        return (bool) strstr (call->name(), str.toAscii().data());
-    } else {
-        return (bool) strcasestr (call->name(), str.toAscii().data());
-    }
+    /*
+     * FIXME: do string comparison directly on trace::Call
+     */
+    ApiTraceCall *apiCall = apiCallFromTraceCall(call, m_helpHash,
+                                                 0, 0, this);
+    bool result = apiCall->contains(str, sensitivity);
+    delete apiCall;
+    return result;
 }
 
 QVector<ApiTraceCall*>