[clang] [C++20][Modules] Fix false compilation error with constexpr (PR #143168)

[Chuanqi Xu via cfe-commits]

================
@@ -6781,7 +6781,7 @@ static bool HandleConstructorCall(const Expr *E, const 
LValue &This,
       // and make sure we've initialized every step along it.
       auto IndirectFieldChain = IFD->chain();
       for (auto *C : IndirectFieldChain) {
-        FD = cast<FieldDecl>(C);
+        FD = cast<FieldDecl>(C)->getCanonicalDecl();
----------------
ChuanqiXu9 wrote:

I'm slightly tired to see a lot of random "getCanonicalDecl()"  in the code... 
but it is not your fault. Let it go.

https://github.com/llvm/llvm-project/pull/143168
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