Add test for denied process attach by pid and fix found bugs in Process/ProcessPOSIX.cpp
and FreeBSD/ProcessMonitor.

http://reviews.llvm.org/D6240

llvm-svn: 222372
diff --git a/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h b/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h
index 68bf2f8..935fd85 100644
--- a/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h
+++ b/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h
@@ -290,7 +290,7 @@
     static void *
     AttachOpThread(void *args);
 
-    static bool
+    static void
     Attach(AttachArgs *args);
 
     static void