Split getClosureRepresentationInfo into MemberEntity and (ir/ast) nodes

tests/language_2/language_2_dart2js.status

Index: tests/language_2/language_2_dart2js.status
diff --git a/tests/language_2/language_2_dart2js.status b/tests/language_2/language_2_dart2js.status
index 0a560412ce06eb1876a46bb62de91a9934c8924c..d8ca63befd554abdf76d3b97d1b1a3f14bb586a2 100644
--- a/tests/language_2/language_2_dart2js.status
+++ b/tests/language_2/language_2_dart2js.status
@@ -208,7 +208,6 @@ assertion_initializer_const_function_test/01: Crash
 assertion_initializer_test: CompileTimeError
 assertion_test: Crash
 assign_instance_method_negative_test: Crash
-assign_instance_method_test: Crash
 assign_to_type_test/01: Crash
 assign_to_type_test/02: Crash
 assign_to_type_test/03: Crash
@@ -397,7 +396,6 @@ closure6_test: Crash
 closure_break_test: Crash
 closure_cycles_test: Crash
 closure_in_constructor_test: Crash
-closure_in_field_initializer_test: Crash
 closure_in_initializer2_test: Crash
 closure_in_initializer_test: Crash
 closure_internals_test: Crash
@@ -537,7 +535,6 @@ assertion_initializer_const_function_error_test/01: Crash
 assertion_initializer_test: CompileTimeError
 assertion_test: Crash
 assign_instance_method_negative_test: Crash
-assign_instance_method_test: Crash
 assign_static_type_test/03: Crash
 assign_static_type_test/04: Crash
 assign_to_type_test/01: Crash
@@ -731,7 +728,6 @@ closure6_test: Crash
 closure_break_test: Crash
 closure_cycles_test: Crash
 closure_in_constructor_test: Crash
-closure_in_field_initializer_test: Crash
 closure_in_initializer2_test: Crash
 closure_in_initializer_test: Crash
 closure_internals_test: Crash