std::exception retrofit sequel

Change-Id: Ide9234c50592fe4f12eb1f6ea836ad60ce4697df
std::exception retrofit sequel

Change-Id: I7461c320e98b9a3605db26f4d58200789e1477df
Run COMPILER_PLUGIN_TOOL on Objective C code, too

Change-Id: I3eb9fb57e80b4600c11eef1c52986400478b4167