Testing null aware elements

[eernstg]

The null aware elements feature is being implemented, so we need some tests on that topic.

[eernstg]

Thanks!

[sgrekhov]

Closing as completed. Expressions checklist below

Expression	Test
?a.b = e	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A02_t01.dart
?a?.b = e	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A02_t01.dart
?a[e1] = e2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A02_t01.dart
?a?[e1] = e2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A02_t01.dart
?super.b = e	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A02_t01.dart
?super[e1] = e2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A02_t01.dart
?this	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_this_super_A02_t01.dart
?super.b	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_this_super_A01_t01.dart
?super[e1]	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_this_super_A01_t01.dart
?super(42)	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_this_super_A01_t01.dart
?(e)	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_parenthesized_A01_t01.dart
?null	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/constants_A01_t01.dart
?1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t02.dart
?0x1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t02.dart
?true	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t02.dart
?false	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t02.dart
?'Hello'	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t02.dart
?r'Hello'	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t02.dart
?{1}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t03.dart
?< int >{1}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t03.dart
?{1: 2}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t03.dart
?< int, int >{1: 2}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t03.dart
?[1]	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t03.dart
?< int >[1]	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t03.dart
?const {1}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t05.dart
?const < int >{1}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t05.dart
?const {1: 2}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t05.dart
?const < int, int >{1: 2}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t05.dart
?const [1]	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t05.dart
?const [1]	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/warnings_A01_t05.dart
?(1, name: 2)	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_records_A01_t01.dart
?const (1, name: 2)	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_records_A01_t01.dart
?MyClass.new	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_functions_A01_t01.dart
?switch (1) { _ => 2 }	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_switch_A01_t01.dart
?throw 0	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_throw_A01_t01.dart
?() => 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_functions_A01_t01.dart
?() async => 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_functions_A01_t01.dart
?() {}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_functions_A01_t01.dart
?() async {}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_functions_A01_t01.dart
?new MyClass()	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_new_const_A01_t01.dart
?const MyClass()	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_new_const_A01_t01.dart
?a..toString()	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_cascade_A01_t01.dart
?a?..toString()	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_cascade_A01_t01.dart
?true ? 1 : 2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_A05_t01.dart
?1 ?? 2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_A05_t02.dart
?false || true	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_logical_A01_t01.dart
?true && false	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_logical_A01_t01.dart
?super == 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_equality_A01_t01.dart
?1 is int	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_relational_A02_t01.dart
?1 as int	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_relational_A02_t02.dart
?1 < 2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_relational_A01_t01.dart
?super < 2	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_relational_A01_t02.dart
?1 | 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_bitwise_A01_t01.dart
?super | 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_bitwise_A01_t02.dart
?1 ^ 1	syntax_bitwise_A01_t01.dart
?super ^ 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_bitwise_A01_t02.dart
?1 & 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_bitwise_A01_t01.dart
?super & 1	syntax_bitwise_A01_t02.dart
?1 << 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_shift_A01_t01.dart
?super << 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_shift_A01_t02.dart
?1 + 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_additive_A01_t01.dart
?super + 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_additive_A01_t02.dart
?1 * 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_multiplicative_A01_t01.dart
?super * 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_multiplicative_A01_t02.dart
?-1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_prefix_A03_t01.dart
?!true	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_prefix_A02_t01.dart
?~1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_prefix_A03_t01.dart
?await 1	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_prefix_A04_t01.dart
?a++	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_postfix_A01_t01.dart
?a.b++	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_postfix_A01_t02.dart
?super.b++	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_unary_postfix_A01_t02.dart
?(a, b) = (2, 3)	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A03_t01.dart
?[a, b] = [2, 3]	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A03_t02.dart
?{true: a, false: b} = {true: 2, false: 3}	https://github.com/dart-lang/co19/tree/master/LanguageFeatures/Control-flow-collections/Null-aware-elements/syntax_assignment_A03_t02.dart