[Sanitizer] Fix android test env issue (#142235) I attempted to fix android tests in https://github.com/llvm/llvm-project/pull/142207 (broken by https://github.com/llvm/llvm-project/pull/141820). They are still failing but now I have more info. https://lab.llvm.org/buildbot/#/builders/186/builds/9504/steps/16/logs/stdio ERROR: Can't open file: //foo.8862 (reason: 30) I believe the reason is that on android the HOME and TMPDIR environment variables are not being set correctly, or they are not read correctly. (https://github.com/llvm/llvm-project/pull/142234#issuecomment-2923694428)
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