[[ Bug 21093 ]] Include line in thrown error description

This patch ensures that descriptions of thrown errors in the script editor
include the line number they were thrown on.

Author: montegoulding

Toolset/libraries/revdebuggerlibrary.livecodescript

@@ -2071,6 +2071,9 @@ command revDebuggerUpdateScriptEditor pObject, pHandler, pLine, pState, pError
    revGoScriptEditor the name of stack tScriptEditor
 
    if pError is not empty then
+      if the number of items of pError is 1 then
+         put comma & pLine after pError
+      end if
       # OK-2008-07-10 : This needs to be sent in time so that it arrives after the script
       # editor has finished initializing itself.
       send "revSEDisplayExecutionError pError, pObject" to stack tScriptEditor in 0 milliseconds