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

[Jesse Rosenstock via cfe-commits]

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@@ -1099,14 +1099,27 @@ TEST(ConfigParseTest, ParsesConfiguration) {
               StatementAttributeLikeMacros,
               std::vector<std::string>({"emit", "Q_EMIT"}));
 
+  Style.Macros.clear();
+  CHECK_PARSE("{Macros: [foo]}", Macros, std::vector<std::string>({"foo"}));
+  std::vector<std::string> GoogleMacros;
+  GoogleMacros.push_back("ASSIGN_OR_RETURN(a, b)=a = (b)");
+  GoogleMacros.push_back("ASSIGN_OR_RETURN(a, b, c)=a = (b); if (x) return c");
+  GoogleMacros.push_back("RETURN_IF_ERROR(expr)=if (x) return expr");
+  GoogleMacros.push_back("ASSERT_OK_AND_ASSIGN(lhs, rexpr)=lhs = (rexpr)");
+  GoogleMacros.push_back("ABSL_ASSIGN_OR_RETURN(a, b)=a = (b)");
+  GoogleMacros.push_back(
+      "ABSL_ASSIGN_OR_RETURN(a, b, c)=a = (b); if (x) return c");
+  GoogleMacros.push_back("ABSL_RETURN_IF_ERROR(expr)=if (x) return expr");
+  GoogleMacros.push_back("ABSL_ASSERT_OK_AND_ASSIGN(lhs, rexpr)=lhs = (rexpr)");
+  CHECK_PARSE("BasedOnStyle: Google", Macros, GoogleMacros);
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jmr wrote:

Again, modeled directly after https://github.com/llvm/llvm-project/pull/169037/changes

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