Silence -Wreturn-type warnings

Address a couple of instances of -Wreturn-type warning from GCC.  The switches
are covered, add an llvm_unreachable to the end of the functions to silence the
warning.  NFC.

llvm-svn: 258546

1 files changed, 1 insertions, 0 deletions

diff --git a/lldb/source/Target/Process.cpp b/lldb/source/Target/Process.cpp
index c347781f6bd..eb6da794399 100644
--- a/lldb/source/Target/Process.cpp
+++ b/lldb/source/Target/Process.cpp
@@ -1501,6 +1501,7 @@ Process::IsAlive ()
         default:
             return false;
     }
+    llvm_unreachable("unhandled state");
 }
 
 // This static callback can be used to watch for local child processes on