Fix tests to run on cperl

See perl11/cperl#364 - `plan` requires an express `scalar` argument
or scalar variable on cperl.

Author: Chris White

t/02-basic.t

@@ -3,7 +3,6 @@
 use rlib 'lib';
 use PerlPPTest;
 
-use IPC::Run3;
 (my $whereami = __FILE__) =~ s/02-basic\.t$//;
 #diag join(' ', 'File is', __FILE__, 'whereami', $whereami);
 
@@ -39,7 +38,7 @@ my @testcases=(
 
 ); #@testcases
 
-plan tests => count_tests(\@testcases, 1, 2);
+plan tests => scalar count_tests(\@testcases, 1, 2);
 
 for my $lrTest (@testcases) {
 	my ($testin, $refout, $referr) = @$lrTest;

t/02-readme.t

@@ -88,7 +88,7 @@ RESULT
 	[ '<?= "!" . "?>foo<?= 42 ?><?" . "bar" ?>', '!foo42bar' ],
 ); #@testcases
 
-plan tests => count_tests(\@testcases, 1, 2);
+plan tests => scalar count_tests(\@testcases, 1, 2);
 
 for my $lrTest (@testcases) {
 	my ($testin, $refout, $referr) = @$lrTest;

t/03-cmdline.t

@@ -101,7 +101,7 @@ $testcases->load('-v','',qr/\bversion\b/)->
 
 ; #$testcases
 
-plan tests => count_tests($testcases->arr, 3, 4);
+plan tests => scalar count_tests($testcases->arr, 3, 4);
 
 for my $lrTest (@{$testcases->arr}) {
 	my ($where, $opts, $testin, $out_re, $err_re) = @$lrTest;

t/04-include.t

@@ -29,7 +29,7 @@ my @testcases=(
 		"a\nb\nc\n"],
 ); #@testcases
 
-plan tests => count_tests(\@testcases, 2, 3);
+plan tests => scalar count_tests(\@testcases, 2, 3);
 
 for my $lrTest (@testcases) {
 	my ($lineno, $testin, $refout, $referr) = @$lrTest;

t/06-macro.t

@@ -22,7 +22,7 @@ my @testcases=(
 
 ); #@testcases
 
-plan tests => count_tests(\@testcases, 2, 3);
+plan tests => scalar count_tests(\@testcases, 2, 3);
 
 for my $lrTest (@testcases) {
 	my ($opts, $testin, $out_re, $err_re) = @$lrTest;