Remove unused variable warning, rebuild gcc-10 and clang-12 results (whitespace diff)

Seems to be just line-ends

Author: hsutter

regression-tests/pure2-ufcs-member-access-and-chaining.cpp2

@@ -46,5 +46,5 @@ f: (_)->int = 0;
 y: int = 0.f();
 
 mytype: type = {
-    hun: (i: int) = { }
+    hun: (_) = { }
 }

regression-tests/test-results/pure2-ufcs-member-access-and-chaining.cpp

@@ -36,7 +36,7 @@ using fun_ret = int;
 extern int y;
 
 class mytype {
-    public: static auto hun(cpp2::impl::in<int> i) -> void;
+    public: static auto hun([[maybe_unused]] auto const& unnamed_param_1) -> void;
     public: mytype() = default;
     public: mytype(mytype const&) = delete; /* No 'that' constructor, suppress copy */
     public: auto operator=(mytype const&) -> void = delete;
@@ -103,5 +103,5 @@ auto no_return([[maybe_unused]] auto const& unnamed_param_1) -> void{}
 int y {CPP2_UFCS_NONLOCAL(f)(0)}; 
 
 #line 49 "pure2-ufcs-member-access-and-chaining.cpp2"
-    auto mytype::hun(cpp2::impl::in<int> i) -> void{}
+    auto mytype::hun([[maybe_unused]] auto const& unnamed_param_1) -> void{}