[Bug gdb/30209] New: Inconsistency between lambdas' signatures and that of the function they are in

[Bug gdb/30209] New: Inconsistency between lambdas' signatures and that of the function they are in

[jengelh at inai dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=30209

            Bug ID: 30209
           Summary: Inconsistency between lambdas' signatures and that of
                    the function they are in
           Product: gdb
           Version: 12.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: jengelh at inai dot de
  Target Milestone: ---

Moved from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109020

== Input ==

$ cat x.cpp
#include <stdint.h>
static void ff(uint64_t b) { [&](){}(); }
int main() { ff(0); }
$ nm -C a.out | grep ff
0000000000401121 t ff(unsigned long)
0000000000401116 t ff(unsigned long)::{lambda()#1}::operator()() const
$ g++ x.cpp -g
$ gdb a.out
(gdb) b ff<TAB><TAB>

== Observed ==

Tab completion yields:

ff(uint64_t)
ff(unsigned long)::{lambda()#1}::operator()() const

== Expectation ==

ff(unsigned long)
ff(unsigned long)::{lambda()#1}::operator()() const

[or]

ff(uint64_t)
ff(uint64_t)::{lambda()#1}::operator()() const

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