Fix rdar://6095061 - gcc allows __builtin_choose_expr as an lvalue



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60924 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/exprs.c b/test/Sema/exprs.c
index db252b8..1b8e134 100644
--- a/test/Sema/exprs.c
+++ b/test/Sema/exprs.c
@@ -38,3 +38,10 @@
    P = (P-42) + Gamma*4;  // expected-error {{invalid operands to binary expression ('int *' and '_Complex float')}}
 }
 
+
+// rdar://6095061
+int test8(void) {
+  int i;
+  __builtin_choose_expr (0, 42, i) = 10;
+  return i;
+}