[clang] [Format] Configure ASSIGN_OR_RETURN macros for Google style (PR #200210)

[Björn Schäpers via cfe-commits]

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@@ -301,6 +309,109 @@ TEST_F(FormatTestMacroExpansion, IndentChildrenWithinMacroCall) {
                Style);
 }
 
+// clang-format off
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HazardyKnusperkeks wrote:

It would be great if you can redo that just with a smaller column limit.
If you want to keep the one test case that is also acceptable, but limit that clang format off to the `verifyFormat` and not around all the test functions here.

https://github.com/llvm/llvm-project/pull/200210