[clang] Fix crash when #embed used in a compound literal (#102304)

Fixes #102248

(cherry picked from commit 3606d69)

Author: Fznamznon

clang/lib/Sema/SemaInit.cpp

@@ -515,8 +515,8 @@ class InitListChecker {
     uint64_t ElsCount = 1;
     // Otherwise try to fill whole array with embed data.
     if (Entity.getKind() == InitializedEntity::EK_ArrayElement) {
-      ValueDecl *ArrDecl = Entity.getParent()->getDecl();
-      auto *AType = SemaRef.Context.getAsArrayType(ArrDecl->getType());
+      auto *AType =
+          SemaRef.Context.getAsArrayType(Entity.getParent()->getType());
       assert(AType && "expected array type when initializing array");
       ElsCount = Embed->getDataElementCount();
       if (const auto *CAType = dyn_cast<ConstantArrayType>(AType))

clang/test/Sema/embed_compound_literal.c

@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 -std=c23 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify -x c++ -Wno-c23-extensions %s
+// expected-no-diagnostics
+
+char *p1 = (char[]){
+#embed __FILE__
+};
+
+int *p2 = (int[]){
+#embed __FILE__
+};
+
+int *p3 = (int[30]){
+#embed __FILE__ limit(30)
+};