[Records] CFE doesn't evaluate constant list literals inside record literals

[alexmarkov]

Part of #49713.

Consider the following example:

main() {
  var r1 = (1, const [42]);
}

When compiled using pkg/front_end/tool/fasta compile --enable-experiment=records --target=none foo.dart the following kernel is generated:

  static method main() → dynamic {
    (core::int, core::List<core::int>) r1 = (1, const <core::int>[42]);
  }

There is a list literal, not a reference to a constant. Such AST crashes VM-specific lowering transformation which doesn't expect to find ListLiteral node with isConst == true:

Unexpected constant ListLiteral node (such nodes should be converted to ConstantExpression): ListLiteral(const <int>[42])
#0      ListLiteralsLowering.transformListLiteral (package:vm/transformations/list_literals_lowering.dart:38:7)
#1      _Lowering.visitListLiteral (package:vm/transformations/lowering.dart:120:33)
#2      ListLiteral.accept (package:kernel/ast.dart:8416:44)
#3      Transformer.transform (package:kernel/visitor.dart:1605:21)
#4      Transformer.transformList (package:kernel/visitor.dart:1640:18)
#5      RecordLiteral.transformChildren (package:kernel/ast.dart:8725:7)
#6      Transformer.defaultTreeNode (package:kernel/visitor.dart:1663:10)
#7      TreeVisitor.defaultExpression (package:kernel/visitor.dart:199:43)
#8      TreeVisitor.visitRecordLiteral (package:kernel/visitor.dart:306:47)
#9      RecordLiteral.accept (package:kernel/ast.dart:8710:44)
#10     Transformer.transform (package:kernel/visitor.dart:1605:21)
#11     VariableDeclaration.transformChildren (package:kernel/ast.dart:11034:23)
#12     Transformer.defaultTreeNode (package:kernel/visitor.dart:1663:10)
#13     TreeVisitor.defaultStatement (package:kernel/visitor.dart:348:41)
#14     TreeVisitor.visitVariableDeclaration (package:kernel/visitor.dart:389:7)
#15     VariableDeclaration.accept (package:kernel/ast.dart:11016:43)

Such ListLiteral nodes should be converted to ConstantExpression / ListConstant during constant evaluation in CFE.

/cc @johnniwinther