Made the expression parser handle persistent variables
correctly even after the process has quit.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@142712 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Expression/ClangExpressionDeclMap.cpp b/source/Expression/ClangExpressionDeclMap.cpp
index aa7adfa..bc10ecc 100644
--- a/source/Expression/ClangExpressionDeclMap.cpp
+++ b/source/Expression/ClangExpressionDeclMap.cpp
@@ -972,9 +972,11 @@
     {
         if ((persistent_var_sp->m_flags & ClangExpressionVariable::EVIsProgramReference ||
              persistent_var_sp->m_flags & ClangExpressionVariable::EVIsLLDBAllocated) &&
-            persistent_var_sp->m_live_sp)
+            persistent_var_sp->m_live_sp &&
+            m_parser_vars->m_exe_ctx->GetProcessSP() &&
+            m_parser_vars->m_exe_ctx->GetProcessSP()->IsAlive())
         {
-            return persistent_var_sp->m_live_sp->GetValue();
+                return persistent_var_sp->m_live_sp->GetValue();
         }
         else
         {