ipa-sra-19.c: Avoid unprototyped function

Power and IBM Z require a function prototype if a vector argument is
passed.  Complete the prototype of k to prevent errors from being
triggered on these platforms

gcc/testsuite/ChangeLog:

2019-10-24  Andreas Krebbel  <krebbel@linux.ibm.com>

	* gcc.dg/ipa/ipa-sra-19.c: Remove dg-skip-if. Add argument type to
	prototype of k.

From-SVN: r277409

gcc/testsuite/ChangeLog

+2019-10-24  Andreas Krebbel  <krebbel@linux.ibm.com>
+
+	* gcc.dg/ipa/ipa-sra-19.c: Remove dg-skip-if. Add argument type to
+	prototype of k.
+
 2019-10-24  Richard Biener  <rguenther@suse.de>
 
 	* gcc.dg/vect/slp-reduc-10a.c: New testcase.

gcc/testsuite/gcc.dg/ipa/ipa-sra-19.c

 /* { dg-do compile } */
 /* { dg-options "-O2"  } */
-/* { dg-skip-if "" { powerpc*-*-* } } */
 
 typedef int __attribute__((__vector_size__(16))) vectype;
 
 vectype dk();
-vectype k();
+vectype k(vectype);
 
 int b;
 vectype *j;