Make the fakecc test more distinct

Author: bingos

dist/ExtUtils-CBuilder/t/03-cplusplus.t

@@ -16,27 +16,27 @@ use File::Spec;
 my $quiet = $ENV{PERL_CORE} && !$ENV{HARNESS_ACTIVE};
 my ($source_file, $object_file, $lib_file);
 
-my $b = ExtUtils::CBuilder->new(quiet => $quiet);
-
-# test plan
-if ( ! $b->have_cplusplus ) {
-  plan skip_all => "no compiler available for testing";
-}
-else {
-  plan tests => 7;
-}
-
 {
     # GH #23146
     my $fake_cc = File::Spec->rel2abs(File::Spec->catfile(qw(some directory what doesnt exist), 'cc'));
-    my $b = ExtUtils::CBuilder->new(
+    my $cb = ExtUtils::CBuilder->new(
         quiet => $quiet,
         config => {
             cc => $fake_cc,
         },
     );
 
-    is $b->{config}{cxx}, $fake_cc, "did not search PATH for C++ compiler when given absolute path to C compiler";
+    is $cb->{config}{cxx}, $fake_cc, "did not search PATH for C++ compiler when given absolute path to C compiler";
+}
+
+my $b = ExtUtils::CBuilder->new(quiet => $quiet);
+
+# test plan
+if ( ! $b->have_cplusplus ) {
+  plan skip_all => "no compiler available for testing";
+}
+else {
+  plan tests => 7;
 }
 
 ok $b->have_cplusplus, "have_cplusplus";