Debugger: Add start with step-into for LLDB

Task-number: QTCREATORBUG-11596

Change-Id: I4561d74524b70bc81345ab9beb60ec7242045509
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

src/plugins/debugger/lldb/lldbengine.cpp

@@ -208,6 +208,7 @@ void LldbEngine::setupInferior()
     Command cmd("setupInferior");
     cmd.arg("executable", executable);
     cmd.arg("startMode", sp.startMode); // directly relying on this is brittle wrt. insertions, so check it here
+    cmd.arg("breakOnMain", sp.breakOnMain);
     cmd.beginList("processArgs");
     foreach (const QString &arg, args.toUnixArgs())
         cmd.arg(arg.toUtf8().toHex());