[Darwin, X86, testsuite] Fix pr92258.c.

This test uses -masm=intel, which isn't supported by Darwin.  Add the
necessary dg-require-effective-target.

gcc/testsuite/ChangeLog:

2019-11-07  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.target/i386/pr92258.c: Add dg-requires for masm_intel.

From-SVN: r277930

gcc/testsuite/ChangeLog

+2019-11-07  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* gcc.target/i386/pr92258.c: Add dg-requires for masm_intel.
+
 2019-11-07  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/91370 - Implement P1041R4 and P1139R2 - Stronger Unicode reqs

gcc/testsuite/gcc.target/i386/pr92258.c

 /* PR target/92258 */
 /* { dg-do compile } */
+/* { dg-require-effective-target masm_intel } */
 /* { dg-options "-masm=intel -msse2" } */
 
 typedef double V __attribute__ ((__vector_size__ (16)));