* stable-6.4:
[bazel] Move ToolTestCase to src folder (6.2)
GcConcurrentTest: @Ignore flaky testInterruptGc
Fix CommitTemplateConfigTest
Fix after_open config and Snapshotting RefDir tests to work with bazel
[bazel] Skip ConfigTest#testCommitTemplatePathInHomeDirecory
Demote severity of some error prone bug patterns to warnings
UploadPack: Fix NPE when traversing a tag chain
Change-Id: I6d20fea3a417e4361b61e81756253343668eb5de