Added a function to the Host that gets a dummy target
for it, so that people who want to use LLDB as a
calculator can run simple expressions without needing
a target or process.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@143147 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Commands/CommandObjectExpression.cpp b/source/Commands/CommandObjectExpression.cpp
index 3ec585e..5134b28 100644
--- a/source/Commands/CommandObjectExpression.cpp
+++ b/source/Commands/CommandObjectExpression.cpp
@@ -283,6 +283,10 @@
 )
 {
     Target *target = m_exe_ctx.GetTargetPtr();
+    
+    if (!target)
+        target = Host::GetDummyTarget(m_interpreter.GetDebugger()).get();
+    
     if (target)
     {
         lldb::ValueObjectSP result_valobj_sp;