Implemented support for generalized void in analyzer.

tests/language/language_dart2js.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # VM specific tests that should not be run by dart2js.
 [ $compiler == dart2js ]
 vm/*: Skip # Issue 12699
 
 [ $compiler == dart2js && ! $dart2js_with_kernel ]
 assert_trailing_comma_test/none: CompileTimeError # Issue 29959
@@ skipping 46 matching lines @@
 assertion_initializer_const_error2_test/cc05: Crash
 assertion_initializer_const_error2_test/cc06: Crash
 assertion_initializer_const_error2_test/cc07: Crash
 assertion_initializer_const_error2_test/cc08: Crash
 assertion_initializer_const_error2_test/cc09: Crash
 assertion_initializer_const_function_error_test/01: Crash
 assertion_initializer_const_function_test/01: CompileTimeError
 assertion_initializer_test: Crash
 
 generalized_void_syntax_test: CompileTimeError # Issue #30176.
+syntax_test/none: CompileTimeError # Issue #30176.
 
 [ $compiler == dart2js && $fast_startup && ! $dart2js_with_kernel ]
 const_evaluation_test/*: Fail # mirrors not supported
 deferred_constraints_constants_test/none: Fail # mirrors not supported
 deferred_constraints_constants_test/reference_after_load: Fail # mirrors not supported
 deferred_constraints_constants_test: Pass # mirrors not supported, passes for the wrong reason
 enum_mirror_test: Fail # mirrors not supported
 field_increment_bailout_test: Fail # mirrors not supported
 instance_creation_in_function_annotation_test: Fail # mirrors not supported
 invocation_mirror2_test: Fail # mirrors not supported
@@ skipping 413 matching lines @@
 super_operator_index_test/05: Crash # Issue 27394
 super_operator_index_test/06: Crash # Issue 27394
 super_operator_index_test/07: Crash # Issue 27394
 super_operator_test: Crash # Issue 27394
 super_setter_interceptor_test: RuntimeError # Issue 27394
 this_conditional_operator_test/01: Crash # Issue 27394
 try_catch_syntax_test/13: Crash # Issue 27394
 try_catch_syntax_test/14: Crash # Issue 27394
 try_catch_syntax_test/15: Crash # Issue 27394
 generalized_void_syntax_test: Crash # Issue #30176
+syntax_test/none: Crash # Issue #30176.
 
 # Note: there are two flags to test dart2js with kernel:
 #  - dart2js_with_kernel_in_ssa: tests cover SSA via Kernel, but no other part of the
 #  compiler. This flag will be deleted soon
 #  - dart2js_with_kernel: tests the entire pipeline with kernel.
 [ $compiler == dart2js && $runtime == d8 && $dart2js_with_kernel_in_ssa && ! $dart2js_with_kernel ]
 abstract_beats_arguments2_test/01: RuntimeError # Issue 27394
 final_super_field_set_test/01: RuntimeError # Issue 27394
 function_type/function_type14_test: Crash # Issue 27394
 function_type/function_type15_test: Crash # Issue 27394
@@ skipping 3415 matching lines @@
 var_init_test: Crash
 void_check_test: Crash
 while_test: Crash
 wrong_number_type_arguments_test/00: Crash
 wrong_number_type_arguments_test/01: Crash
 wrong_number_type_arguments_test/02: Crash
 wrong_number_type_arguments_test/none: Crash
 
 [ $compiler == dart2js && $dart2js_with_kernel && $use_sdk ]
 *: Skip # Issue 29626