[libc] [llvm] [libc] Migrate unistd tests to use ErrnoCheckingTest. (PR #132067)

[Alexey Samsonov via llvm-commits]

================
@@ -41,10 +41,12 @@
 // they all provide.
 
 #define ASSERT_ERRNO_EQ(VAL)                                                   \
-  ASSERT_EQ(VAL, static_cast<int>(LIBC_NAMESPACE::libc_errno))
+  ASSERT_EQ(VAL, static_cast<int>(LIBC_NAMESPACE::libc_errno));                \
----------------
vonosmas wrote:

Done

https://github.com/llvm/llvm-project/pull/132067