Rename to allow_hw_watchpoint_access_tests

This changes skip_hw_watchpoint_access_tests to invert the sense, and
renames it to allow_hw_watchpoint_access_tests.

gdb/testsuite/gdb.base/break-idempotent.exp

@@ -184,7 +184,7 @@ foreach_with_prefix pie { "nopie" "pie" } {
 	    test_break $always_inserted "watch"
 	}
 
-	if {![skip_hw_watchpoint_access_tests]
+	if {[allow_hw_watchpoint_access_tests]
 	    && ![skip_hw_watchpoint_multi_tests]} {
 	    test_break $always_inserted "rwatch"
 	    test_break $always_inserted "awatch"

gdb/testsuite/gdb.base/watch-before-fork.exp

@@ -18,7 +18,7 @@
 # followed by a catchpoint hit.
 
 # This test uses "awatch".
-require !skip_hw_watchpoint_access_tests
+require allow_hw_watchpoint_access_tests
 
 standard_testfile
 

gdb/testsuite/gdb.base/watch-read.exp

@@ -24,7 +24,7 @@
 
 standard_testfile .c
 
-require !skip_hw_watchpoint_access_tests
+require allow_hw_watchpoint_access_tests
 
 if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
     return -1

gdb/testsuite/gdb.base/watch_thread_num.exp

@@ -23,7 +23,7 @@
 # so the test is only meaningful on a system with hardware watchpoints.
 # More specifically, the implementation of this test uses access
 # watchpoints, so skip it when those are not available.
-require !skip_hw_watchpoint_access_tests
+require allow_hw_watchpoint_access_tests
 
 standard_testfile .c
 

gdb/testsuite/gdb.base/watchpoint-hw-hit-once.exp

@@ -13,7 +13,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-require !skip_hw_watchpoint_access_tests
+require allow_hw_watchpoint_access_tests
 
 set test watchpoint-hw-hit-once
 set srcfile ${test}.c

gdb/testsuite/gdb.multi/watchpoint-multi.exp

@@ -22,7 +22,7 @@ require !use_gdb_stub
 
 # Do not use simple hardware watchpoints ("watch") as its false hit may be
 # unnoticed by GDB if it reads it still has the same value.
-require !skip_hw_watchpoint_access_tests
+require allow_hw_watchpoint_access_tests
 
 if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
     untested "failed to compile"

gdb/testsuite/gdb.threads/watchthreads-reorder.exp

@@ -25,7 +25,7 @@
 # could be assigned during continuation of a thread with pending SIGTRAP to the
 # different/new watchpoint, just based on the watchpoint/debug register number.
 
-require !skip_hw_watchpoint_access_tests !skip_hw_watchpoint_multi_tests
+require allow_hw_watchpoint_access_tests !skip_hw_watchpoint_multi_tests
 if {![istarget *-*-linux*]} {
     return 0
 }

gdb/testsuite/lib/gdb.exp

@@ -4081,19 +4081,19 @@ proc skip_hw_watchpoint_multi_tests {} {
     return 0
 }
 
-# Return a 1 if we should skip tests that require read/access watchpoints
+# Return a 1 if we should run tests that require read/access watchpoints
 
-proc skip_hw_watchpoint_access_tests {} {
+proc allow_hw_watchpoint_access_tests {} {
     if { [skip_hw_watchpoint_tests] } {
-	return 1
+	return 0
     }
 
     # These targets support just write watchpoints
     if { [istarget "s390*-*-*"] } {
-	return 1
+	return 0
     }
 
-    return 0
+    return 1
 }
 
 # Return 1 if we should skip tests that require the runtime unwinder