Remove names of unreferenced parameters. Patch from STL@microsoft.com

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@267852 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/input.output/iostream.format/input.streams/istream.unformatted/seekg_off.pass.cpp

@@ -40,7 +40,7 @@ public:
     CharT* egptr() const {return base::egptr();}
 protected:
     typename base::pos_type seekoff(typename base::off_type off,
-                                    std::ios_base::seekdir way,
+                                    std::ios_base::seekdir,
                                     std::ios_base::openmode which)
     {
         assert(which == std::ios_base::in);

test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.get/sgetn.pass.cpp

@@ -25,7 +25,7 @@ struct test
     test() {}
 
 protected:
-    std::streamsize xsgetn(char_type* s, std::streamsize n)
+    std::streamsize xsgetn(char_type*, std::streamsize)
     {
         ++xsgetn_called;
         return 10;

test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.pback/sputbackc.pass.cpp

@@ -32,7 +32,7 @@ struct test
     }
 
 protected:
-    int_type pbackfail(int_type c = traits_type::eof())
+    int_type pbackfail(int_type = traits_type::eof())
     {
         ++pbackfail_called;
         return 'a';

test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.pback/sungetc.pass.cpp

@@ -32,7 +32,7 @@ struct test
     }
 
 protected:
-    int_type pbackfail(int_type c = traits_type::eof())
+    int_type pbackfail(int_type = traits_type::eof())
     {
         ++pbackfail_called;
         return 'a';

test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.put/sputc.pass.cpp

@@ -36,7 +36,7 @@ struct test
     }
 
 protected:
-    int_type overflow(int_type c = traits_type::eof())
+    int_type overflow(int_type = traits_type::eof())
     {
         ++overflow_called;
         return 'a';

test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.pub.put/sputn.pass.cpp

@@ -25,7 +25,7 @@ struct test
     test() {}
 
 protected:
-    std::streamsize xsputn(const char_type* s, std::streamsize n)
+    std::streamsize xsputn(const char_type*, std::streamsize)
     {
         ++xsputn_called;
         return 5;