clang/test/Preprocessor/macro_rparen_scan.c

// 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 ) ;