Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -E %s | FileCheck %s --match-full-lines --strict-whitespace // CHECK:3 ; /* Right paren scanning, hard case. Should expand to 3. */ #define i(x) 3 #define a i(yz #define b ) a b ) ;