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Problem
See #27752
Summary of Changes
Adds tests for the two account aliasing restrictions of
UpgradeableLoaderInstruction::Upgrade
which can be triggered.The other two in
UpgradableLoaderInstruction::DeployWithMaxDataLen
andUpgradableLoaderInstruction::Close
can not fail and returnInstructionError::AccountBorrowFailed
because other prior checks already prevent that.Fixes #