ValueKind of InitListExpr is not imported

The following test fails:

TEST_P(ASTImporterTestBase, ExprValueKindShouldBeImported) {
  Decl *TU = getTuDecl(
      R"(
      const int &init();
      void foo() { const int &a{init()}; }
      )", Lang_CXX11, "input0.cc");
  auto *FromD = FirstDeclMatcher<VarDecl>().match(TU, varDecl(hasName("a")));
  ASSERT_TRUE(FromD->getAnyInitializer());
  auto *InitExpr = FromD->getAnyInitializer();
  ASSERT_TRUE(InitExpr);
  ASSERT_TRUE(InitExpr->isGLValue());

  auto *ToD = Import(FromD, Lang_CXX11);
  ASSERT_TRUE(ToD);
  auto *ToInitExpr = cast<VarDecl>(ToD)->getAnyInitializer();
  ASSERT_TRUE(ToInitExpr);
  EXPECT_TRUE(ToInitExpr->isGLValue());
}

This results a CSA 'llvm_unreachable' assertion to fire (in radiosw): 'Assume' not implemented for this NonLoc Since the value kind is not imported, the analyzer engine believes that the given InitListExpr is an rvalue, thus it creates a nonloc::CompoundVal instead of creating memory region (as in case of an lvalue reference).

Ericsson / clang

ValueKind of InitListExpr is not imported #469