Fix remaining AppVeyor test failures due to the image update

Author: weltling

ext/bcmath/tests/bug72093-win32.phpt

@@ -6,6 +6,13 @@ if(!extension_loaded("bcmath")) print "skip";
 if (substr(PHP_OS, 0, 3) != 'WIN') {
     die('skip valid only for windows');
 }
+
+$cur = PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD;
+$req = "10.0.17134";
+if (version_compare($cur, $req) >= 0) {
+	echo "skip Only for Windows systems < $req";
+}
+
 ?>
 --FILE--
 <?php

ext/bcmath/tests/bug72093.phpt

@@ -4,7 +4,11 @@ Bug 72093: bcpowmod accepts negative scale and corrupts _one_ definition
 <?php
 if(!extension_loaded("bcmath")) print "skip";
 if (substr(PHP_OS, 0, 3) == 'WIN') {
-    die('skip Not valid for windows');
+	$cur = PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD;
+	$req = "10.0.17134";
+	if (version_compare($cur, $req) < 0) {
+		echo "skip Compatible on Windows systems >= $req";
+	}
 }
 ?>
 --FILE--

ext/bcmath/tests/bug75178-win32.phpt

@@ -6,6 +6,11 @@ if (!extension_loaded('bcmath')) die('skip bcmath extension is not available');
 if (substr(PHP_OS, 0, 3) != 'WIN') {
     die('skip valid only for windows');
 }
+$cur = PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD;
+$req = "10.0.17134";
+if (version_compare($cur, $req) >= 0) {
+	echo "skip Only for Windows systems < $req";
+}
 ?>
 --FILE--
 <?php

ext/bcmath/tests/bug75178.phpt

@@ -4,7 +4,11 @@ Bug #75178 (bcpowmod() misbehaves for non-integer base or modulus)
 <?php
 if (!extension_loaded('bcmath')) die('skip bcmath extension is not available');
 if (substr(PHP_OS, 0, 3) == 'WIN') {
-    die('skip Not valid for windows');
+	$cur = PHP_WINDOWS_VERSION_MAJOR.'.'.PHP_WINDOWS_VERSION_MINOR.'.'.PHP_WINDOWS_VERSION_BUILD;
+	$req = "10.0.17134";
+	if (version_compare($cur, $req) < 0) {
+		echo "skip Compatible on Windows systems >= $req";
+	}
 }
 ?>
 --FILE--