Fix CI

Author: zyn0217

clang/test/Parser/cxx0x-decl.cpp

@@ -221,6 +221,7 @@ template<int ...N> void NoMissingSemicolonHereEither(struct S... [N]);
 // expected-error@-1 {{pack indexing is a C++2c extension}} \
 
 
+
 // This must be at the end of the file; we used to look ahead past the EOF token here.
 // expected-error@+1 {{expected unqualified-id}} expected-error@+1{{expected ';'}}
 using

clang/test/SemaCXX/cxx2c-pack-indexing-ext-diags.cpp

@@ -41,6 +41,7 @@ void h(typename T... [1]::type); // cxx11-warning {{pack indexing is a C++2c ext
 
 template <typename... T>
 void x(T... [0]); // cxx11-warning {{'T...[0]' is no longer a pack expansion but a pack indexing type; add a name to specify a pack expansion}} \
+                  // cxx11-warning {{pack indexing is a C++2c extension}} \
                   // cxx26-warning {{pack indexing is incompatible with C++ standards before C++2c}}
 
 void call() {