leak tests: mark some read-tree tests as passing with SANITIZE=leak

Mark some tests that match "*read-tree*" as passing when git is
compiled with SANITIZE=leak. They'll now be listed as running under
the "GIT_TEST_PASSING_SANITIZE_LEAK=true" test mode (the "linux-leaks"
CI target). We still have around half the tests that match
"*read-tree*" failing, but let's whitelist those that don't.

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

t/t1000-read-tree-m-3way.sh

@@ -71,6 +71,8 @@ In addition:
  DF: a special case, where A makes a directory and B makes a file.
 
 '
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-read-tree.sh
 . "$TEST_DIRECTORY"/lib-read-tree-m-3way.sh

t/t1003-read-tree-prefix.sh

@@ -6,6 +6,7 @@
 test_description='git read-tree --prefix test.
 '
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success setup '

t/t1009-read-tree-new-index.sh

@@ -5,6 +5,7 @@ test_description='test read-tree into a fresh index file'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success setup '

t/t1012-read-tree-df.sh

@@ -2,6 +2,7 @@
 
 test_description='read-tree D/F conflict corner cases'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-read-tree.sh
 

t/t1014-read-tree-confusing.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='check that read-tree rejects confusing paths'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'create base tree' '