Once a function has been JIT-compiled once, don't
JIT it again.

llvm-svn: 172477
diff --git a/lldb/source/Expression/ClangFunction.cpp b/lldb/source/Expression/ClangFunction.cpp
index fe4cca1..49e09c4 100644
--- a/lldb/source/Expression/ClangFunction.cpp
+++ b/lldb/source/Expression/ClangFunction.cpp
@@ -277,6 +277,8 @@
         return false;
     if (process && m_jit_alloc != LLDB_INVALID_ADDRESS)
         m_jit_process_wp = lldb::ProcessWP(process->shared_from_this());
+    
+    m_JITted = true;
 
     return true;
 }