llvm-project/clang/test/CXX/basic/basic.start/basic.start.main/p2b.cpp

// RUN: %clang_cc1 -fsyntax-only -verify %s 
// expected-no-diagnostics

typedef int Int;
typedef char Char;
typedef Char* Carp;

Int main(Int argc, Carp argv[], Char *env[]) {
}