Fix -Wreturn-type fallout in g++.old-deja/g++.brendan/asm-extn1.C

	* g++.old-deja/g++.brendan/asm-extn1.C: Accept all sparc* targets.
	(main): Add return type.

From-SVN: r254522

gcc/testsuite/ChangeLog

+2017-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* g++.old-deja/g++.brendan/asm-extn1.C: Accept all sparc* targets.
+	(main): Add return type.
+
 2017-11-08  Martin Liska  <mliska@suse.cz>
 
 	PR sanitizer/82792

gcc/testsuite/g++.old-deja/g++.brendan/asm-extn1.C

-// { dg-do assemble { target sparc-sun-* } }
+// { dg-do assemble { target sparc*-*-* } }
 // { dg-options "-S" }
 // GROUPS passed asm-extension
 // This used to crash because c_expand_asm_keyword didn't know what to
@@ -7,7 +7,7 @@
 
 extern void traptable(void);
 
-main()
+int main()
 {
   asm("wr    %0,%%tbr" : : "r" (traptable));
 }