fad0c76d0a109ab7b063f0d405588cf1e6c15e4d clang-format: Set PackConstructorInitializers: CurrentLine (MarcoFalke)
Pull request description:
Now that the minimum supported clang version is larger than 14, the `PackConstructorInitializers` setting can be set to `CurrentLine` in the clang-format file. (This option was added in clang 14. Ref: https://releases.llvm.org/17.0.1/tools/clang/docs/ClangFormatStyleOptions.html#packconstructorinitializers)
The `CurrentLine` option will either put all constructor initializers on the current line if they fit. Otherwise, it will put each one on its own line.
The `CurrentLine` option is desirable over the current `BinPack` option, because:
* It is what the majority of the codebase is currently using.
* It makes it easier to skim the lines to ensure all fields are properly initialized, without having to parse bin-packed constructor initializers, possibly with nested initializer lists, function calls, or ternary operators.
* It makes diffs smaller when an initializer is added or removed, because only a single line is touched. Otherwise, the whole bin-packed block could re-flow, making the diff harder to parse.
Note: The previous `BinPack` option allows any formatting, due to the current `ColumnLimit: 0`. I presume developers manually formatted most constructor initializers to be on separate lines? With the new `CurrentLine` setting, one has to only put the first initializer on a separate line, and clang-format will take care of the rest.
For example:
```sh
echo 'A::A(O o)
: m_first{o.a, o.b},
m_second{fun(o)}, m_third{o.c?o.d:o.e} {}' | clang-format --style=file:./src/.clang-format
```
Will put each on a separate line. Previously, it was left as-is.
ACKs for top commit:
l0rinc:
ACK fad0c76d0a109ab7b063f0d405588cf1e6c15e4d
TheCharlatan:
ACK fad0c76d0a109ab7b063f0d405588cf1e6c15e4d
hebasto:
ACK fad0c76d0a109ab7b063f0d405588cf1e6c15e4d.
Tree-SHA512: f26a0980ecfa01b2a5279561e3df316c10241f8e67830034d493d70a6d0baae8831498233e8986cfa8f3b434cb9bc1e7e525b3d4587dca66b2d609ddae522a88
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