7fb9a1e929
My r10-7705 patch for PR94521 made us set TFF_NO_FUNCTION_ARGUMENTS when
pretty printing the function scope of a local class type in order to
eliminate infinite recursion with a function signature that contains
decltype([]{}). But due to the way dump_function_decl works, this
change regressed our pretty printing of local class types whose context
contains a class template specialization, as in the testcase below, in
which we wrongly pretty print the two local types as 'A<T>::f<char>::S1'
and 'B<T>::f<int>::S2'.
This patch makes dump_scope pass TFF_NO_TEMPLATE_BINDINGS instead of
TFF_NO_FUNCTION_ARGUMENTS when pretty printing a function scope. It
appears this is the strictly better flag to use: it avoids the infinite
recursion issue, it restores pretty printing of the function parameter
list, and it stops dump_function_decl from trying to print a function
template specialization in its own weird way.
Summary of pretty printing differences for the below testcase:
r10-7704: A<T>::f() [with U = char; T = int]::S1
B<T>::f() [with T = int]::S2
r10-7705: A<T>::f<char>::S1
B<T>::f<int>::S2
this patch: A<int>::f<char>()::S1
B<int>::f()::S2
gcc/cp/ChangeLog:
PR c++/99213
PR c++/94521
* error.c (dump_scope): Pass TFF_NO_TEMPLATE_BINDINGS instead of
TFF_NO_FUNCTION_ARGUMENTS when dumping a function scope.
gcc/testsuite/ChangeLog:
PR c++/99213
PR c++/94521
* g++.dg/diagnostic/local1.C: New test.
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