Throw input error instead of parser error to avoid crashing.

pkg/front_end/test/fasta/kompile.status

 # Copyright (c) 2016, 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.md file.
 
 # Status file for the kompile_test.dart (notice k, not c) test suite. This is
 # testing generating Analyzer ASTs, that is, code in
 # pkg/fasta/lib/src/analyzer/. Currently, this is behind direct-to-kernel, so
 # there are many crashes.
 
 accessors: Crash
@@ skipping 10 matching lines @@
 map: Crash
 mixin: Crash
 statements: Crash
 
 rasta/abstract_constructor: Crash
 rasta/bad_constructor_redirection: Crash
 rasta/bad_continue: Crash
 rasta/bad_default_constructor: Crash
 rasta/bad_explicit_super_constructor: Crash
 rasta/bad_implicit_super_constructor: Crash
-rasta/bad_interpolation: Crash
+rasta/bad_interpolation: Fail
 rasta/bad_redirection: Fail
 rasta/bad_setter_initializer: Crash
 rasta/bad_unicode: Fail
 rasta/breaking_bad: Crash
 rasta/cascades: Crash
 rasta/class_hierarchy: Crash
 rasta/class_member: Crash
 rasta/constant_get_and_invoke: Crash
 rasta/deferred_lib: Fail
 rasta/deferred_load: Crash
 rasta/duplicated_mixin: Crash
 rasta/enum: Fail
 rasta/export: Fail
 rasta/external_factory_redirection: Crash
 rasta/foo: Fail
 rasta/for_loop: Crash
 rasta/generic_factory: Crash
 rasta/issue_000001: Crash
 rasta/issue_000002: Crash
 rasta/issue_000004: Crash
 rasta/issue_000006: Crash
 rasta/issue_000007: Crash
 rasta/issue_000008: Crash
 rasta/issue_000011: Crash
 rasta/issue_000012: Crash
 rasta/issue_000025: Crash
 rasta/issue_000026: Crash
 rasta/issue_000031: Crash
-rasta/issue_000032: Crash
+rasta/issue_000032: Fail
 rasta/issue_000034: Crash
 rasta/issue_000035: Crash
 rasta/issue_000035a: Fail
-rasta/issue_000036: Crash
+rasta/issue_000036: Fail
 rasta/issue_000039: Crash
 rasta/issue_000041: Crash
 rasta/issue_000042: Crash
 rasta/issue_000043: Fail
 rasta/issue_000044: Fail
-rasta/issue_000045: Crash
-rasta/issue_000046: Crash
-rasta/issue_000047: Crash
+rasta/issue_000045: Fail
+rasta/issue_000046: Fail
+rasta/issue_000047: Fail
 rasta/issue_000048: Crash
 rasta/issue_000052: Crash
 rasta/issue_000053: Crash
 rasta/issue_000067: Crash
 rasta/issue_000068: Crash
 rasta/issue_000069: Crash
 rasta/issue_000070: Crash
 rasta/issue_000080: Crash
 rasta/issue_000081: Crash
-rasta/malformed_const_constructor: Crash
+rasta/malformed_const_constructor: Fail
 rasta/malformed_function: Fail
 rasta/malformed_function_type: Crash
 rasta/mandatory_parameter_initializer: Fail
 rasta/mixin_library: Crash
-rasta/native_is_illegal: Crash
+rasta/native_is_illegal: Fail
 rasta/parser_error: Crash
 rasta/previsit_deferred: Crash
 rasta/static: Crash
 rasta/super: Fail
 rasta/super_initializer: Crash
 rasta/super_mixin: Crash
 rasta/super_operator: Crash
 rasta/supports_reflection: Crash
 rasta/switch_execution_case_t02: Crash
 rasta/switch_fall_through: Crash
 rasta/this_invoke: Crash
 rasta/try_label: Crash
 rasta/type_literals: Crash
-rasta/type_with_parse_error: Crash
+rasta/type_with_parse_error: Fail
 rasta/typedef: Crash
 rasta/unresolved: Crash
 rasta/unresolved_constructor: Crash
 rasta/unresolved_for_in: Crash
 rasta/unresolved_recovery: Crash
 rasta/unsupported_platform_library: Fail