[Bug c++/20669] New: name lookup failure with firefox

["tromey at sourceware dot org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=20669

            Bug ID: 20669
           Summary: name lookup failure with firefox
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: c++
          Assignee: unassigned at sourceware dot org
          Reporter: tromey at sourceware dot org
  Target Milestone: ---

I'm afraid I don't have a simple test case for this.
I built a recent firefox with debugging enabled.
Trying to print this symbol fails:

(gdb) p
&xpc::FilteringWrapper<js::SecurityWrapper<js::CrossCompartmentWrapper>,
xpc::Opaque>::singleton
No type "FilteringWrapper<js::SecurityWrapper<js::CrossCompartmentWrapper>,
xpc::Opaque>" within class or namespace "xpc".

However, if I wrap the symbol name in single quotes, it does work:

(gdb) p
&'xpc::FilteringWrapper<js::SecurityWrapper<js::CrossCompartmentWrapper>,
xpc::Opaque>::singleton'
$3 = (const
xpc::FilteringWrapper<js::SecurityWrapper<js::CrossCompartmentWrapper>,
xpc::Opaque> *) 0xa613078
<xpc::FilteringWrapper<js::SecurityWrapper<js::CrossCompartmentWrapper>,
xpc::Opaque>::singleton>


I think these two commands should be equivalent.

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