Small improvements for clang-format alignment [do not merge]

[fbusato]

Address #2242

Description

The PR adds two small improvements to the current code formatting:

• Alignment for compound statements, for example:

  int x          = ...
  int long_name &= ...

• Alignment for declarations, for example:

  void f(int         x, 
         long_name_t y);

The PR applies the new formatting only to cub/examples to show a preview of the changes without adding 3K+ files. This allow getting an idea of the resulting formatting and decide if we want to keep it.

[github-actions]

🥳 CI Workflow Results

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[davebayer]

IMHO this doesn't improve the readability and makes it even worse..

[miscco]

Honestly I am also not too enthusiastic, but happy to follow consensus

[fbusato]

IMHO this doesn't improve the readability and makes it even worse..

🙁 I had the opposite impression. Maybe the subset that the PR shows in not very representative. Here I see a big difference #2242.
Anyway, the idea is to get feedback and collect preferences.

[davebayer]

What I don't like is that it does this:

// 1. Good case
type1   a = 10;
longer1 b = 23;

// 2. short & long type name combination
short                       a = 10;
some_long_type_on_next_line b = 27;

// 3. short & long type name with long & short var name combination
short                       some_longer_variable_name = 10;
some_long_type_on_next_line b                         = 27;

I think 2. is acceptable (but not better), but 3. is just terrible and I'm afraid we would be getting a lot of them.

And I hope it was obvious from my previous review by not requiring changes, but I will happily follow the consensus, too :)

[fbusato]

I definitely agree with your argument. My idea was to apply it only for functions. It degenerates very easy with long names. Unfortunately, it is not possible to provide penalty or knobs :(

[fbusato]

We are getting very lucky llvm/llvm-project#54220

[bernhardmgruber]

Hmm, I am also not sure if this improves readability :S