[clang] [clang-format] Option to ignore PP directives (PR #70338)

[Björn Schäpers via cfe-commits]

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@@ -24153,6 +24153,23 @@ TEST_F(FormatTest, WhitespaceSensitiveMacros) {
   verifyNoChange("FOO(String-ized&Messy+But: :Still=Intentional);", Style);
 }
 
+TEST_F(FormatTest, IgnorePPDefinitions) {
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HazardyKnusperkeks wrote:

Add some tests:
* With formatted code above and below.
* Breaking the column limit.
* Multiline definitions (with different positions for the `\`).

We need to see how you think it should be formatted.

https://github.com/llvm/llvm-project/pull/70338