[ARM/AArch64] Use signed chars in gcc.dg/pr60114.c.

	PR c/60983
	* gcc.dg/pr60114.c: Use signed chars.

From-SVN: r209858

gcc/testsuite/ChangeLog

+2014-04-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	PR c/60983
+	* gcc.dg/pr60114.c: Use signed chars.
+
 2014-04-28  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/59120

gcc/testsuite/gcc.dg/pr60114.c

@@ -3,7 +3,7 @@
 /* { dg-options "-Wconversion" } */
 
 struct S { int n, u[2]; };
-const char z[] = {
+const signed char z[] = {
   [0] = 0x100, /* { dg-warning "9:overflow in implicit constant conversion" } */
   [2] = 0x101, /* { dg-warning "9:overflow in implicit constant conversion" } */
 };
@@ -18,11 +18,11 @@ typedef int H[];
 void
 foo (void)
 {
-  char a[][3] = { { 0x100, /* { dg-warning "21:overflow in implicit constant conversion" } */
+  signed char a[][3] = { { 0x100, /* { dg-warning "28:overflow in implicit constant conversion" } */
                     1, 0x100 }, /* { dg-warning "24:overflow in implicit constant conversion" } */
                   { '\0', 0x100, '\0' } /* { dg-warning "27:overflow in implicit constant conversion" } */
                 };
-  (const char []) { 0x100 }; /* { dg-warning "21:overflow in implicit constant conversion" } */
+  (const signed char []) { 0x100 }; /* { dg-warning "28:overflow in implicit constant conversion" } */
   (const float []) { 1e0, 1e1, 1e100 }; /* { dg-warning "32:conversion" } */
   struct S s1 = { 0x80000000 }; /* { dg-warning "19:conversion of unsigned constant value to negative integer" } */
   struct S s2 = { .n = 0x80000000 }; /* { dg-warning "24:conversion of unsigned constant value to negative integer" } */