[clang-tools-extra] [clang-tidy][C++20] Add support for Initialization Forwarding in Nested Object Construction (PR #131969)

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``````````bash
git-clang-format --diff 5ac680c5bffdc216d131fd260d2b1c9435b15571 fa0f1079587e6e26279c293fe4467ff0388f6a43 --extensions cpp -- clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.cpp clang-tools-extra/test/clang-tidy/checkers/modernize/use-emplace.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.cpp b/clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.cpp
index 277994bbb6..ea449944bb 100644
--- a/clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.cpp
+++ b/clang-tools-extra/clang-tidy/modernize/UseEmplaceCheck.cpp
@@ -225,12 +225,11 @@ void UseEmplaceCheck::registerMatchers(MatchFinder *Finder) {
 
   // allow for T{} to be replaced, even if no CTOR is declared
   auto HasConstructInitListExpr = has(initListExpr(
-      initCountLeq(1),
-      anyOf(allOf(has(SoughtConstructExpr),
-                  has(cxxConstructExpr(argumentCountIs(0)))),
-            has(cxxBindTemporaryExpr(has(SoughtConstructExpr),
-                                     has(cxxConstructExpr(argumentCountIs(0)))
-                                         )))));
+      initCountLeq(1), anyOf(allOf(has(SoughtConstructExpr),
+                                   has(cxxConstructExpr(argumentCountIs(0)))),
+                             has(cxxBindTemporaryExpr(
+                                 has(SoughtConstructExpr),
+                                 has(cxxConstructExpr(argumentCountIs(0))))))));
   auto HasBracedInitListExpr =
       anyOf(has(cxxBindTemporaryExpr(HasConstructInitListExpr)),
             HasConstructInitListExpr);

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https://github.com/llvm/llvm-project/pull/131969