Improve error reporting for failing to find argdumper.

Reviewers: tfiala, granata.enrico, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13125

llvm-svn: 248466

lldb/source/Host/macosx/Host.mm

@@ -1345,13 +1345,13 @@ repeat with the_window in (get windows)\n\
         FileSpec expand_tool_spec;
         if (!HostInfo::GetLLDBPath(lldb::ePathTypeSupportExecutableDir, expand_tool_spec))
         {
-            error.SetErrorString("could not find argdumper tool");
+            error.SetErrorString("could not get support executable directory for argdumper tool");
             return error;
         }
         expand_tool_spec.AppendPathComponent("argdumper");
         if (!expand_tool_spec.Exists())
         {
-            error.SetErrorString("could not find argdumper tool");
+            error.SetErrorStringWithFormat("could not find argdumper tool: %s", expand_tool_spec.GetPath().c_str());
             return error;
         }