[Darwin, PPC, testsuite] Fix darwin-bool-1.c.

This test is failing because of a pedantic warning that is unrelated to the
purpose of the test.  Fixed by suppressing that warning.

2019-06-22  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.target/powerpc/darwin-bool-1.c: Suppress the pedantic
	warning about _Bool.

From-SVN: r272591

gcc/testsuite/ChangeLog

+2019-06-22  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* gcc.target/powerpc/darwin-bool-1.c: Suppress the pedantic
+	warning about _Bool.
+
 2019-06-22  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/65707

gcc/testsuite/gcc.target/powerpc/darwin-bool-1.c

 /* Check that sizeof(bool) is 4 if we don't use special options. */
 /* Matt Austern  <austern@apple.com> */
 /* { dg-do run { target { powerpc*-*-darwin* && ilp32 } } } */
+/* We do need to suppress the ISO C doesn't support _Bool message tho.  */
+/* { dg-options "-Wno-pedantic" } */
 
 int dummy1[sizeof(_Bool) - 3];
 int dummy2[5 - sizeof(_Bool)];