RFR: 8294438: Fix misleading-indentation warnings in hotspot [v3]

[Aleksey Shipilev]

> 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.

Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:

 - Merge branch 'master' into JDK-8294438-misleading-indentation
 - Merge branch 'master' into JDK-8294438-misleading-indentation
 - Merge branch 'master' into JDK-8294438-misleading-indentation
 - Also javaClasses.cpp
 - Fix

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Changes: https://git.openjdk.org/jdk/pull/10444/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10444&range=02
  Stats: 56 lines in 5 files changed: 7 ins; 20 del; 29 mod
  Patch: https://git.openjdk.org/jdk/pull/10444.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10444/head:pull/10444

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