Add "-o" option to "expression" which prints the object description if available.

git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@115115 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Target/CPPLanguageRuntime.cpp b/source/Target/CPPLanguageRuntime.cpp
index d694b77..d0fc7af 100644
--- a/source/Target/CPPLanguageRuntime.cpp
+++ b/source/Target/CPPLanguageRuntime.cpp
@@ -33,3 +33,10 @@
     // C++ has no generic way to do this.
     return false;
 }
+
+bool
+CPPLanguageRuntime::GetObjectDescription (Stream &str, Value &value, ExecutionContextScope *exe_scope)
+{
+    // C++ has no generic way to do this.
+    return false;
+}