[clang-format] [PR43333] Fix C# breaking before function name when using Attributes
Summary:
This is a fix for https://bugs.llvm.org/show_bug.cgi?id=43333
This comes with 3 main parts
- C# attributes cause function names on a new line even when AlwaysBreakAfterReturnType is set to None
- Add AlwaysBreakAfterReturnType to None by default in the Microsoft style,
- C# unit tests are not using Microsoft style (which we created to define the default C# style to match a vanilla C# project).
Reviewers: owenpan, klimek, russellmcc, mitchell-stellar
Reviewed By: mitchell-stellar
Subscribers: cfe-commits
Tags: #clang-tools-extra, #clang, #clang-format
Differential Revision: https://reviews.llvm.org/D67629
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@373707
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