leak tests: don't skip some tests under SANITIZE=leak

The '!SANITIZE_LEAK' prerequisite added in 956d2e4639 (tests: add a
test mode for SANITIZE=leak, run it in CI, 2021-09-23) has been used
in various tests to skip individual tests in otherwise leak-free
tests.

Let's change the cases that have become leak-free since then to run
under SANITIZE=leak.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t0002-gitfile.sh

@@ -65,7 +65,7 @@ test_expect_success 'check commit-tree' '
 	test_path_is_file "$REAL/objects/$(objpath $SHA)"
 '
 
-test_expect_success !SANITIZE_LEAK 'check rev-list' '
+test_expect_success 'check rev-list' '
 	git update-ref "HEAD" "$SHA" &&
 	git rev-list HEAD >actual &&
 	echo $SHA >expected &&

t/t0004-unwritable.sh

@@ -31,7 +31,7 @@ test_expect_success WRITE_TREE_OUT 'write-tree output on unwritable repository'
 	test_cmp expect out.write-tree
 '
 
-test_expect_success POSIXPERM,SANITY,!SANITIZE_LEAK 'commit should notice unwritable repository' '
+test_expect_success POSIXPERM,SANITY 'commit should notice unwritable repository' '
 	test_when_finished "chmod 775 .git/objects .git/objects/??" &&
 	chmod a-w .git/objects .git/objects/?? &&
 	test_must_fail git commit -m second 2>out.commit

t/t1503-rev-parse-verify.sh

@@ -132,7 +132,7 @@ test_expect_success 'use --default' '
 	test_must_fail git rev-parse --verify --default bar
 '
 
-test_expect_success !SANITIZE_LEAK 'main@{n} for various n' '
+test_expect_success 'main@{n} for various n' '
 	git reflog >out &&
 	N=$(wc -l <out) &&
 	Nm1=$(($N-1)) &&

t/t3001-ls-files-others-exclude.sh

@@ -103,7 +103,7 @@ test_expect_success 'git ls-files --others with various exclude options.' '
 	test_cmp expect output
 '
 
-test_expect_success !SANITIZE_LEAK 'restore gitignore' '
+test_expect_success 'restore gitignore' '
 	git checkout --ignore-skip-worktree-bits $allignores &&
 	rm .git/index
 '
@@ -126,7 +126,7 @@ cat > expect << EOF
 #	three/
 EOF
 
-test_expect_success !SANITIZE_LEAK 'git status honors core.excludesfile' \
+test_expect_success 'git status honors core.excludesfile' \
 	'test_cmp expect output'
 
 test_expect_success 'trailing slash in exclude allows directory match(1)' '

t/t3305-notes-fanout.sh

@@ -51,7 +51,7 @@ test_expect_success 'creating many notes with git-notes' '
 	done
 '
 
-test_expect_success !SANITIZE_LEAK 'many notes created correctly with git-notes' '
+test_expect_success 'many notes created correctly with git-notes' '
 	git log >output.raw &&
 	grep "^    " output.raw >output &&
 	i=$num_notes &&

t/t4020-diff-external.sh

@@ -33,7 +33,7 @@ test_expect_success 'GIT_EXTERNAL_DIFF environment' '
 
 '
 
-test_expect_success !SANITIZE_LEAK 'GIT_EXTERNAL_DIFF environment should apply only to diff' '
+test_expect_success 'GIT_EXTERNAL_DIFF environment should apply only to diff' '
 	GIT_EXTERNAL_DIFF=echo git log -p -1 HEAD >out &&
 	grep "^diff --git a/file b/file" out
 
@@ -74,7 +74,7 @@ test_expect_success 'diff.external' '
 	test_cmp expect actual
 '
 
-test_expect_success !SANITIZE_LEAK 'diff.external should apply only to diff' '
+test_expect_success 'diff.external should apply only to diff' '
 	test_config diff.external echo &&
 	git log -p -1 HEAD >out &&
 	grep "^diff --git a/file b/file" out

t/t6102-rev-list-unexpected-objects.sh

@@ -17,7 +17,7 @@ test_expect_success 'setup unexpected non-blob entry' '
 	broken_tree="$(git hash-object -w --literally -t tree broken-tree)"
 '
 
-test_expect_success !SANITIZE_LEAK 'TODO (should fail!): traverse unexpected non-blob entry (lone)' '
+test_expect_success 'TODO (should fail!): traverse unexpected non-blob entry (lone)' '
 	sed "s/Z$//" >expect <<-EOF &&
 	$broken_tree Z
 	$tree foo
@@ -121,7 +121,7 @@ test_expect_success 'setup unexpected non-blob tag' '
 	tag=$(git hash-object -w --literally -t tag broken-tag)
 '
 
-test_expect_success !SANITIZE_LEAK 'TODO (should fail!): traverse unexpected non-blob tag (lone)' '
+test_expect_success 'TODO (should fail!): traverse unexpected non-blob tag (lone)' '
 	git rev-list --objects $tag
 '