[libcxx] [test] Fix URLs in comments and make them HTTPS. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@310156 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/utilities/function.objects/func.not_fn/not_fn.pass.cpp

@@ -587,7 +587,7 @@ void call_operator_noexcept_test()
 }
 
 void test_lwg2767() {
-    // See http://wg21.link/LWG2767
+    // See https://cplusplus.github.io/LWG/lwg-defects.html#2767
     struct Abstract { virtual void f() const = 0; };
     struct Derived : public Abstract { void f() const {} };
     struct F { bool operator()(Abstract&&) { return false; } };

test/std/utilities/function.objects/unord.hash/non_enum.pass.cpp

@@ -13,7 +13,7 @@
 
 //  Hashing a struct w/o a defined hash should *not* fail, but it should
 // create a type that is not constructible and not callable.
-// See also: http://cplusplus.github.io/LWG/lwg-active.html#2543
+// See also: https://cplusplus.github.io/LWG/lwg-defects.html#2543
 
 #include <functional>
 #include <cassert>

test/std/utilities/memory/util.smartptr/util.smartptr.enab/enable_shared_from_this.pass.cpp

@@ -84,7 +84,7 @@ int main()
       assert(a1.use_count() == 1);
     }
     // Test LWG issue 2529. Only reset '__weak_ptr_' when it's already expired.
-    // http://cplusplus.github.io/LWG/lwg-active.html#2529.
+    // https://cplusplus.github.io/LWG/lwg-defects.html#2529
     // Test two different ways:
     // * Using 'weak_from_this().expired()' in C++17.
     // * Using 'shared_from_this()' in all dialects.

test/std/utilities/tuple/tuple.general/tuple.smartptr.pass.cpp

@@ -29,5 +29,5 @@ int main () {
     }
     // Smart pointers of type 'T[N]' are not tested here since they are not
     // supported by the standard nor by libc++'s implementation.
-    // See http://reviews.llvm.org/D21320 for more information.
+    // See https://reviews.llvm.org/D21320 for more information.
 }

test/std/utilities/variant/variant.visit/visit.pass.cpp

@@ -300,7 +300,7 @@ void test_exceptions() {
 #endif
 }
 
-// See http://llvm.org/PR31916
+// See https://bugs.llvm.org/show_bug.cgi?id=31916
 void test_caller_accepts_nonconst() {
   struct A {};
   struct Visitor {