Use KernelToElementMap (more) directly in KernelSsaBuilder

pkg/compiler/lib/src/kernel/no_such_method_resolver.dart

 // Copyright (c) 2017, 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.
 
 part of dart2js.kernel.element_map;
 
 class KernelNoSuchMethodResolver implements NoSuchMethodResolver {
   final KernelToElementMapImpl elementMap;
 
   KernelNoSuchMethodResolver(this.elementMap);
@@ skipping 47 matching lines @@
     if (body is ir.ReturnStatement) {
       expr = body.expression;
     } else if (body is ir.ExpressionStatement) {
       expr = body.expression;
     }
     return expr is ir.Throw;
   }
 
   @override
   FunctionEntity getSuperNoSuchMethod(FunctionEntity method) {
-    ClassEntity cls = method.enclosingClass;
-    while (cls != null) {
-      cls = _elementEnvironment.getSuperClass(cls);
-      MemberEntity member =
-          _elementEnvironment.lookupClassMember(cls, Identifiers.noSuchMethod_);
-      if (member != null) {
-        if (member.isFunction) {
-          FunctionEntity function = member;
-          if (function.parameterStructure.positionalParameters >= 1) {
-            return function;
-          }
-        }
-        // If [member] is not a valid `noSuchMethod` the target is
-        // `Object.superNoSuchMethod`.
-        break;
-      }
-    }
-    FunctionEntity function = _elementEnvironment.lookupClassMember(
-        _commonElements.objectClass, Identifiers.noSuchMethod_);
-    assert(invariant(method, function != null,
-        message: "No super noSuchMethod found for $method."));
-    return function;
+    return elementMap.getSuperNoSuchMethod(method.enclosingClass);
   }
 }