Some cascading errors aren't reported by the CFE anymore and should be removed from tests

[chloestefantsova]

The CLs https://dart-review.googlesource.com/c/sdk/+/233363 and https://dart-review.googlesource.com/c/sdk/+/233382 prevent certain errors from being reported in some of the cases where that was caused by a recovery from another error. The error reporting in those cases is now in agreement to Analyzer. The following tests should be updated to reflect the changes.

Language/Functions/Formal_Parameters/Optional_Formals/syntax_t12.dart

This test should be updated in branches master and pre-nnbd. The following expectations of an error from the CFE should be removed.

co19/Language/Functions/Formal_Parameters/Optional_Formals/syntax_t12.dart

Lines 22 to 24 in 42d638c

	p = 1;
	//^
	// [cfe] unspecified

co19/Language/Functions/Formal_Parameters/Optional_Formals/syntax_t12.dart

Lines 25 to 27 in 1b9f593

	p = 1;
	//^
	// [cfe] unspecified

Language/Functions/Formal_Parameters/Optional_Formals/syntax_t13.dart

This test should be updated in branch pre-nnbd. The following expectation of an error from the CFE should be removed.

co19/Language/Functions/Formal_Parameters/Optional_Formals/syntax_t13.dart

Lines 26 to 27 in 1b9f593

	//^
	// [cfe] unspecified

Language/Functions/Formal_Parameters/Required_Formals/syntax_t03.dart

This test should be updated in branches master and pre-nnbd. The following expectations of an error from the CFE should be removed.

co19/Language/Functions/Formal_Parameters/Required_Formals/syntax_t03.dart

Lines 35 to 37 in 42d638c

	x = 1;
	//^
	// [cfe] unspecified

co19/Language/Functions/Formal_Parameters/Required_Formals/syntax_t03.dart

Lines 39 to 41 in 1b9f593

	x = 1;
	//^
	// [cfe] unspecified

Language/Enums/syntax_t08.dart

This test should be updated in branches master and pre-nnbd. The following expectations of an error from the CFE should be removed.

co19/Language/Enums/syntax_t08.dart

Lines 22 to 24 in 42d638c

	E e = E.b;
	// ^
	// [cfe] unspecified

co19/Language/Enums/syntax_t08.dart

Lines 22 to 24 in 1b9f593

	E e = E.b;
	// ^
	// [cfe] unspecified

Language/Enums/syntax_t09.dart

This test should be updated in branches master and pre-nnbd. The following expectations of an error from the CFE should be removed.

co19/Language/Enums/syntax_t09.dart

Lines 21 to 23 in 42d638c

	E e = E.b;
	// ^
	// [cfe] unspecified

co19/Language/Enums/syntax_t09.dart

Lines 22 to 24 in 1b9f593

	E e = E.b;
	// ^
	// [cfe] unspecified

[sgrekhov]

Fixed in both master and pre-nnbd branches