Merge branch 'users/hekota/pr-124840' of https://github.com/llvm/llvm-project into cbuffer-codegen5

Author: hekota

clang/lib/Sema/SemaDecl.cpp

@@ -14184,12 +14184,6 @@ void Sema::ActOnUninitializedDecl(Decl *RealDecl) {
         Var->getType().getAddressSpace() == LangAS::opencl_local)
       return;
 
-    // In HLSL, objects in the hlsl_constat address space are initialized
-    // externaly, so don't synthesize an implicit initializer.
-    if (getLangOpts().HLSL &&
-        Var->getType().getAddressSpace() == LangAS::hlsl_constant)
-      return;
-
     // C++03 [dcl.init]p9:
     //   If no initializer is specified for an object, and the
     //   object is of (possibly cv-qualified) non-POD class type (or