b4990fa6fa
Reserve .rs extension for Rust. Bug: 137365032 Test: make checkbuild Test: cd frameworks/compile/slang/tests ./slang_tests.py Test: atest CtsRenderscriptTestCases Test: CtsRsCppTestCases Exempt-From-Owner-Approval: Clean CP Change-Id: Ic49fc7f5265d49cd4f8efd6a2b6a60b77bbd40dc Merged-In: Ic49fc7f5265d49cd4f8efd6a2b6a60b77bbd40dc (cherry picked from commit e98dce083cc891a29f8aab489a80606f215c9f1c) (cherry picked from commit bbb75b1263887dfebd9372b60ec7095a7dc6aa1d)