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

[Jesse Rosenstock via cfe-commits]

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

https://github.com/llvm/llvm-project/pull/233944 was submitted instead.  This isn't as good about short functions whose body is a macro. (https://github.com/llvm/llvm-project/pull/233944#issuecomment-6342077314) @r4nt 

Still, I think configuring these macros is an improvement.

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