CDB: Do not break on initial breakpoints.

When starting cdb with the -o otion (debug child processes) it would stop
on every child initial breakpoint.

Change-Id: I9e9ae92c3c39a80d78e17cd6c6afb862bd04abe2
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/plugins/debugger/cdb/cdbengine.cpp

@@ -796,6 +796,7 @@ void CdbEngine::setupInferior()
                                             BreakpointModelId(quint16(-1)), true), 0);
     }
     postCommand("sxn 0x4000001f", 0); // Do not break on WowX86 exceptions.
+    postCommand("sxn ibp", 0); // Do not break on initial breakpoints.
     postCommand(".asm source_line", 0); // Source line in assembly
     postCommand(m_extensionCommandPrefixBA + "setparameter maxStringLength="
                 + debuggerCore()->action(MaximalStringLength)->value().toByteArray()