Fix the local variable lookup in the locals handler.

tests/compiler/dart2js_native/dart2js_native.status

 # Copyright (c) 2011, 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.
 
 [ $browser ]
 *: Skip
 
 [ $compiler == dart2js && !$dart2js_with_kernel ]
 native_no_such_method_exception4_frog_test: CompileTimeError # Issue 9631
 native_no_such_method_exception5_frog_test: CompileTimeError # Issue 9631
@@ skipping 121 matching lines @@
 native_class_inheritance3_frog_test: Crash # Issue 27394
 native_wrapping_function3_frog_test: Crash # Issue 27394
 
 [ $compiler == dart2js && $dart2js_with_kernel && $host_checked ]
 abstract_class_test: Crash
 bound_closure_super_test: Crash
 bound_closure_test: Crash
 browser_compat_1_prepatched_test: Crash
 browser_compat_1_unpatched_test: Crash
 browser_compat_2_test: Crash
-catch_javascript_null_stack_trace_test: Crash
 compute_this_script_test: Crash
 core_type_check_native_test: Crash
 dispatch_property_initialization_test: Crash
 downcast_test: Crash
 error_safeToString_test: Crash
 event_loop_test: Crash
 fake_thing_2_test: Crash
 fake_thing_test: Crash
 field_type2_test: Crash
 field_type_test: Crash
 fixup_get_tag_test: Crash
 hash_code_test: Crash
-inference_of_helper_methods_test: Crash
 internal_library_test: Crash
 is_check_test: CompileTimeError
 issue9182_test: Crash
 jsobject_test: Crash
 load_elim_refinement_test: CompileTimeError
 mirror_intercepted_field_test: CompileTimeError
 native_call_arity1_frog_test: Crash
 native_call_arity2_frog_test: Crash
 native_call_arity3_frog_test: Crash
 native_checked_arguments1_frog_test: Crash
@@ skipping 47 matching lines @@
 native_no_such_method_exception3_frog_test: Crash
 native_no_such_method_exception4_frog_test: Crash
 native_no_such_method_exception5_frog_test: Crash
 native_no_such_method_exception_frog_test: Crash
 native_novel_html_test: Crash
 native_null_closure_frog_test: Crash
 native_null_frog_test: Crash
 native_property_frog_test: CompileTimeError
 native_to_string_frog_test: Crash
 native_use_native_name_in_table_frog_test: Crash
-native_window1_frog_test: Crash
-native_window2_frog_test: Crash
+native_exception_test: RuntimeError
 native_wrapping_function3_frog_test: Crash
 native_wrapping_function_frog_test: Crash
 oddly_named_fields_test: Crash
 optimization_hints_test: Crash
 rti_only_native_test: Crash
 runtimetype_test: CompileTimeError
 static_methods_test: Crash
 subclassing_1_test: Crash
 subclassing_2_test: Crash
 subclassing_3_test: Crash
 subclassing_4_test: Crash
 subclassing_5_test: Crash
 subclassing_constructor_1_test: Crash
 subclassing_constructor_2_test: Crash
 subclassing_super_call_test: Crash
 subclassing_super_field_1_test: Crash
 subclassing_super_field_2_test: Crash
 subclassing_type_test: Crash
 super_call_test: Crash
 super_property_test: Crash
 type_error_decode_test: Crash
 
 [ $compiler == dart2js && $dart2js_with_kernel && $minified ]
 abstract_class_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 bound_closure_super_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 bound_closure_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 browser_compat_1_prepatched_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 browser_compat_1_unpatched_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 browser_compat_2_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
-catch_javascript_null_stack_trace_test: Crash # Assertion failure: Cannot find value local(unwrapException_closure.call#ex) in (local(unwrapException_closure.call#error), local(unwrapException#saveStackTrace), local(unwrapException_closure.call#thrownStackTrace)) for j:closure_call(unwrapException_closure.call).
 core_type_check_native_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 dispatch_property_initialization_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 downcast_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 error_safeToString_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 event_loop_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 fake_thing_2_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 fake_thing_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 field_type2_test: Crash # Assertion failure: Tag 'Node' already in use by 'Node'
 field_type_test: Crash # Assertion failure: Tag 'Node' already in use by 'Node'
 fixup_get_tag_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 hash_code_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
-inference_of_helper_methods_test: Crash # Assertion failure: Cannot find value local(main_closure.call#a) in (local(main#)) for j:closure_call(main_closure.call).
 internal_library_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 is_check_test: CompileTimeError
 issue9182_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 jsobject_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 load_elim_refinement_test: CompileTimeError
 mirror_intercepted_field_test: CompileTimeError
 native_call_arity1_frog_test: Crash # NoSuchMethodError: Class 'JMethod' has no instance getter 'type'.
 native_call_arity2_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_call_arity3_frog_test: Crash # NoSuchMethodError: Class 'JMethod' has no instance getter 'type'.
 native_checked_arguments1_frog_test: Crash # NoSuchMethodError: The method 'accept' was called on null.
@@ skipping 46 matching lines @@
 native_no_such_method_exception3_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_no_such_method_exception4_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_no_such_method_exception5_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_no_such_method_exception_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_novel_html_test: Crash # Assertion failure: Tag 'HTMLElement' already in use by 'Element'
 native_null_closure_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_null_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_property_frog_test: CompileTimeError
 native_to_string_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_use_native_name_in_table_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
-native_window1_frog_test: Crash # Assertion failure: Cannot find value local(main_closure.call#win) in (local(main#)) for j:closure_call(main_closure.call).
-native_window2_frog_test: Crash # Assertion failure: Cannot find value local(main_closure.call#win) in (local(main#)) for j:closure_call(main_closure.call).
 native_wrapping_function3_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 native_wrapping_function_frog_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 oddly_named_fields_test: Crash # Assertion failure: Cannot find value local(initHooks_closure.call#prototypeForTag) in (local(initHooks_closure.call#tag), local(initHooks#)) for j:closure_call(initHooks_closure.call).
 optimization_hints_test: Crash # NoSuchMethodError: The getter 'enclosingClass' was called on null.
 rti_only_native_test: Crash # Assertion failure: Cannot find value local(Maps_mapToString_closure.call#first) in (local(Maps_mapToString_closure.call#k), local(Maps_mapToString_closure.call#v), local(Maps.mapToString#)) for j:closure_call(Maps_mapToString_closure.call).
 runtimetype_test: CompileTimeError
 static_methods_test: Crash # Assertion failure: Cannot find value local(unwrapException_closure.call#ex) in (local(unwrapException_closure.call#error), local(unwrapException#saveStackTrace), local(unwrapException_closure.call#thrownStackTrace)) for j:closure_call(unwrapException_closure.call).
 subclassing_1_test: Crash # Assertion failure: Cannot find value local(initHooks_closure.call#prototypeForTag) in (local(initHooks_closure.call#tag), local(initHooks#)) for j:closure_call(initHooks_closure.call).
 subclassing_2_test: Crash # Assertion failure: Cannot find value local(initHooks_closure.call#prototypeForTag) in (local(initHooks_closure.call#tag), local(initHooks#)) for j:closure_call(initHooks_closure.call).
 subclassing_3_test: Crash # UnimplementedError: KernelClosedWorldMixin.getAppliedMixin
 subclassing_4_test: Crash # UnimplementedError: KernelClosedWorldMixin.getAppliedMixin
 subclassing_5_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 subclassing_constructor_1_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 subclassing_constructor_2_test: Crash # Assertion failure: Cannot find value local(unwrapException_closure.call#ex) in (local(unwrapException_closure.call#error), local(unwrapException#saveStackTrace), local(unwrapException_closure.call#thrownStackTrace)) for j:closure_call(unwrapException_closure.call).
 subclassing_super_call_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 subclassing_super_field_1_test: Crash # Assertion failure: Cannot find value local(initHooks_closure.call#prototypeForTag) in (local(initHooks_closure.call#tag), local(initHooks#)) for j:closure_call(initHooks_closure.call).
 subclassing_super_field_2_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 subclassing_type_test: Crash # Assertion failure: Cannot find value local(initHooks_closure.call#prototypeForTag) in (local(initHooks_closure.call#tag), local(initHooks#)) for j:closure_call(initHooks_closure.call).
 super_call_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
 super_property_test: Crash # NoSuchMethodError: The getter 'memberIndex' was called on null.
-type_error_decode_test: Crash # Assertion failure: Cannot find value local(main_closure.call#f) in (local(main#)) for j:closure_call(main_closure.call).
+native_exception_test: RuntimeError
+subclassing_constructor_2_test: RuntimeError