Add new experimental rule 'function-return-type-wrapping' #1331
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Description
In case of a multiline function signature (e.g. the signature already contains a newline) or in case of a single line function signature which exceeds the max-line-length, force the return type to be on the same line as the closing parenthesis. This can either be wrapping the closing parenthesis plus return type to a new line, or joining the line containing the closing parenthesis with the return type. See unit tests for examples.
This rule partly overlaps with the parameter-list-wrapping but does not conflict with it.
Closes #941, #188
Checklist
CHANGELOG.mdis updated