RFR: 8294438: Fix misleading-indentation warnings in hotspot

[Coleen Phillimore]

On Tue, 27 Sep 2022 10:28:54 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> There are number of places where misleading-indentation is reported by GCC. Currently, the warning is disabled for the entirety of Hotspot, which is not good.
> 
> C1 does an unusual style here. Changing it globally would touch a lot of lines. Instead of doing that, I fit the existing style while also resolving the warnings. Note this actually solves a bug in `lir_alloc_array`, where `do_temp` are called without a check.
> 
> Build-tested this with product of:
>   - GCC 10
>   - {i686, x86_64, aarch64, powerpc64le, s390x, armhf, riscv64}
>   - {server, zero}
>   - {release, fastdebug}
> 
> Linux x86_64 fastdebug `tier1` is fine.

Nice fix and enabling the warning.

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Marked as reviewed by coleenp (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10444