Auto merge of #119286 - jyn514:linker-output, r=bjorn3

show linker output even if the linker succeeds

Show stderr and stderr by default, controlled by a new `linker_messages` lint.

fixes rust-lang/rust#83436. fixes rust-lang/rust#38206. cc https://rust-lang.zulipchat.com/#narrow/stream/233931-t-compiler.2Fmajor-changes/topic/uplift.20some.20-Zverbose.20calls.20and.20rename.20to.E2.80.A6.20compiler-team.23706/near/408986134

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r? `@bjorn3`

Author: bors