[lldb][Test] Make TestFrameFormatNameWithArgs.test more compatible across platforms

On Linux the `std::function` behaved differently to that on Darwin.

This patch removes usage of `std::function` in the test but attempts
to retain the test-coverage. We mainly want function types appearing
in the template argument and function argument lists.

Also add a `char const*` overload to one of the test functions to
cover the "format function argument using ValueObject formatter" code-path.

Differential Revision: https://reviews.llvm.org/D137272

1 files changed, 11 insertions, 12 deletions

diff --git a/lldb/test/Shell/Settings/Inputs/names.cpp b/lldb/test/Shell/Settings/Inputs/names.cpp
index 461c6d091a0f..cf6982abb8f3 100644
--- a/lldb/test/Shell/Settings/Inputs/names.cpp
+++ b/lldb/test/Shell/Settings/Inputs/names.cpp
@@ -1,5 +1,3 @@
-#include <functional>
-
 namespace detail {
 template <typename T> struct Quux {};
 } // namespace detail
@@ -7,15 +5,16 @@ template <typename T> struct Quux {};
 using FuncPtr = detail::Quux<double> (*(*)(int))(float);
 
 struct Foo {
-  template <typename T> void foo(T const &t) const noexcept(true) {}
+  template <typename T> void foo(T arg) const noexcept(true) {}
 
-  template <size_t T> void operator<<(size_t) {}
+  template <int T> void operator<<(int) {}
 
   template <typename T> FuncPtr returns_func_ptr(detail::Quux<int> &&) const noexcept(false) { return nullptr; }
 };
 
 namespace ns {
-template <typename T> int foo(T const &t) noexcept(false) { return 0; }
+template <typename T> int foo(char const *str) noexcept(false) { return 0; }
+template <typename T> int foo(T t) { return 1; }
 
 template <typename T> FuncPtr returns_func_ptr(detail::Quux<int> &&) { return nullptr; }
 } // namespace ns
@@ -24,20 +23,20 @@ int bar() { return 1; }
 
 namespace {
 int anon_bar() { return 1; }
-auto anon_lambda = [](std::function<int(int (*)(int))>) mutable {};
+auto anon_lambda = [] {};
 } // namespace
 
 int main() {
-  ns::foo(bar);
-  ns::foo(std::function{bar});
+  ns::foo<decltype(bar)>(bar);
+  ns::foo<decltype(bar)>("bar");
   ns::foo(anon_lambda);
-  ns::foo(std::function{anon_bar});
-  ns::foo(&Foo::foo<std::function<int(int)>>);
+  ns::foo(anon_bar);
+  ns::foo<decltype(&Foo::foo<int(int)>)>("method");
   ns::returns_func_ptr<int>(detail::Quux<int>{});
   Foo f;
-  f.foo(std::function{bar});
-  f.foo(std::function{anon_bar});
+  f.foo(anon_bar);
   f.operator<< <(2 > 1)>(0);
   f.returns_func_ptr<int>(detail::Quux<int>{});
+
   return 0;
 }