Rollup merge of #133996 - Zalathar:ui-link-native-libs, r=jieyouxu

Move most tests for `-l` and `#[link(..)]` into `tests/ui/link-native-libs`

Tests for the closely-related `-l` flag and `#[link(..)]` attribute are spread across a few different directories, and in some cases have ended up in a test directory intended for other linker-related functionality.

This PR moves most of them into a single `tests/ui/link-native-libs` directory.

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Part of #133895.

try-job: i686-mingw

r? jieyouxu

Author: fmease