Refactor index operator in SimpleTypeInferrer.

pkg/compiler/lib/src/resolution/semantic_visitor_mixins.dart

Index: pkg/compiler/lib/src/resolution/semantic_visitor_mixins.dart
diff --git a/pkg/compiler/lib/src/resolution/semantic_visitor_mixins.dart b/pkg/compiler/lib/src/resolution/semantic_visitor_mixins.dart
index dce195b1b07de12a64b856ce9cdbb060245224bc..704bcbd283995614a1861efb311390c29310dcd2 100644
--- a/pkg/compiler/lib/src/resolution/semantic_visitor_mixins.dart
+++ b/pkg/compiler/lib/src/resolution/semantic_visitor_mixins.dart
@@ -503,47 +503,6 @@ abstract class ErrorBulkMixin<R, A>
   }
 
   @override
-  R errorUnresolvedSuperCompoundIndexSet(
-      SendSet node,
-      Element element,
-      Node index,
-      AssignmentOperator operator,
-      Node rhs,
-      A arg) {
-    return bulkHandleError(node, arg);
-  }
-
-  @override
-  R errorUnresolvedSuperIndexPostfix(
-      Send node,
-      Element function,
-      Node index,
-      IncDecOperator operator,
-      A arg) {
-    return bulkHandleError(node, arg);
-  }
-
-  @override
-  R errorUnresolvedSuperIndexPrefix(
-      Send node,
-      Element function,
-      Node index,
-      IncDecOperator operator,
-      A arg) {
-    return bulkHandleError(node, arg);
-  }
-
-  @override
-  R errorUnresolvedSuperIndexSet(
-      SendSet node,
-      Element element,
-      Node index,
-      Node rhs,
-      A arg) {
-    return bulkHandleError(node, arg);
-  }
-
-  @override
   R errorUndefinedUnaryExpression(
       Send node,
       Operator operator,
@@ -704,6 +663,27 @@ abstract class PrefixBulkMixin<R, A>
   }
 
   @override
+  R visitUnresolvedSuperGetterIndexPrefix(
+      Send node,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return bulkHandlePrefix(node, arg);
+  }
+
+  @override
+  R visitUnresolvedSuperSetterIndexPrefix(
+      Send node,
+      MethodElement getter,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return bulkHandlePrefix(node, arg);
+  }
+
+  @override
   R visitSuperMethodSetterPrefix(
       Send node,
       FunctionElement method,
@@ -894,6 +874,27 @@ abstract class PostfixBulkMixin<R, A>
   }
 
   @override
+  R visitUnresolvedSuperGetterIndexPostfix(
+      Send node,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return bulkHandlePostfix(node, arg);
+  }
+
+  @override
+  R visitUnresolvedSuperSetterIndexPostfix(
+      Send node,
+      MethodElement getter,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return bulkHandlePostfix(node, arg);
+  }
+
+  @override
   R visitSuperMethodSetterPostfix(
       Send node,
       FunctionElement method,
@@ -1725,6 +1726,29 @@ abstract class IndexSetBulkMixin<R, A>
   }
 
   @override
+  R visitUnresolvedSuperGetterCompoundIndexSet(
+      SendSet node,
+      Element element,
+      Node index,
+      AssignmentOperator operator,
+      Node rhs,
+      A arg) {
+    return bulkHandleIndexSet(node, arg);
+  }
+
+  @override
+  R visitUnresolvedSuperSetterCompoundIndexSet(
+      SendSet node,
+      MethodElement getter,
+      Element element,
+      Node index,
+      AssignmentOperator operator,
+      Node rhs,
+      A arg) {
+    return bulkHandleIndexSet(node, arg);
+  }
+
+  @override
   R visitSuperIndexSet(
       SendSet node,
       FunctionElement function,
@@ -1733,6 +1757,16 @@ abstract class IndexSetBulkMixin<R, A>
       A arg) {
     return bulkHandleIndexSet(node, arg);
   }
+
+  @override
+  R visitUnresolvedSuperIndexSet(
+      SendSet node,
+      Element element,
+      Node index,
+      Node rhs,
+      A arg) {
+    return bulkHandleIndexSet(node, arg);
+  }
 }
 
 /// Mixin that implements all binary visitor methods in [SemanticSendVisitor] by
@@ -4676,7 +4710,7 @@ class TraversalSendMixin<R, A> implements SemanticSendVisitor<R, A> {
   }
 
   @override
-  R errorUnresolvedSuperIndexSet(
+  R visitUnresolvedSuperIndexSet(
       Send node,
       Element element,
       Node index,
@@ -4688,8 +4722,22 @@ class TraversalSendMixin<R, A> implements SemanticSendVisitor<R, A> {
   }
 
   @override
-  R errorUnresolvedSuperCompoundIndexSet(
+  R visitUnresolvedSuperGetterCompoundIndexSet(
+      SendSet node,
+      Element element,
+      Node index,
+      AssignmentOperator operator,
+      Node rhs,
+      A arg) {
+    apply(index, arg);
+    apply(rhs, arg);
+    return null;
+  }
+
+  @override
+  R visitUnresolvedSuperSetterCompoundIndexSet(
       SendSet node,
+      MethodElement getter,
       Element element,
       Node index,
       AssignmentOperator operator,
@@ -4721,9 +4769,9 @@ class TraversalSendMixin<R, A> implements SemanticSendVisitor<R, A> {
   }
 
   @override
-  R errorUnresolvedSuperIndexPostfix(
+  R visitUnresolvedSuperGetterIndexPostfix(
       Send node,
-      Element function,
+      Element element,
       Node index,
       IncDecOperator operator,
       A arg) {
@@ -4732,9 +4780,33 @@ class TraversalSendMixin<R, A> implements SemanticSendVisitor<R, A> {
   }
 
   @override
-  R errorUnresolvedSuperIndexPrefix(
+  R visitUnresolvedSuperSetterIndexPostfix(
       Send node,
-      Element function,
+      MethodElement getter,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    apply(index, arg);
+    return null;
+  }
+
+  @override
+  R visitUnresolvedSuperGetterIndexPrefix(
+      Send node,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    apply(index, arg);
+    return null;
+  }
+
+  @override
+  R visitUnresolvedSuperSetterIndexPrefix(
+      Send node,
+      MethodElement getter,
+      Element element,
       Node index,
       IncDecOperator operator,
       A arg) {
@@ -6378,6 +6450,23 @@ abstract class BaseImplementationOfSuperIncDecsMixin<R, A>
       A arg,
       {bool isPrefix});
 
+  R handleSuperUnresolvedGetterIndexPostfixPrefix(
+      Send node,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg,
+      {bool isPrefix});
+
+  R handleSuperUnresolvedSetterIndexPostfixPrefix(
+      Send node,
+      FunctionElement indexFunction,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg,
+      {bool isPrefix});
+
   @override
   R visitSuperFieldFieldPostfix(
       Send node,
@@ -6533,6 +6622,52 @@ abstract class BaseImplementationOfSuperIncDecsMixin<R, A>
         node, indexFunction, indexSetFunction,
         index, operator, arg, isPrefix: true);
   }
+
+  @override
+  R visitUnresolvedSuperGetterIndexPostfix(
+      Send node,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return handleSuperUnresolvedGetterIndexPostfixPrefix(
+        node, element, index, operator, arg, isPrefix: false);
+  }
+
+  @override
+  R visitUnresolvedSuperGetterIndexPrefix(
+      Send node,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return handleSuperUnresolvedGetterIndexPostfixPrefix(
+        node, element, index, operator, arg, isPrefix: true);
+  }
+
+  @override
+  R visitUnresolvedSuperSetterIndexPostfix(
+      Send node,
+      MethodElement indexFunction,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return handleSuperUnresolvedSetterIndexPostfixPrefix(
+        node, indexFunction, element, index, operator, arg, isPrefix: false);
+  }
+
+  @override
+  R visitUnresolvedSuperSetterIndexPrefix(
+      Send node,
+      MethodElement indexFunction,
+      Element element,
+      Node index,
+      IncDecOperator operator,
+      A arg) {
+    return handleSuperUnresolvedSetterIndexPostfixPrefix(
+        node, indexFunction, element, index, operator, arg, isPrefix: true);
+  }
 }
 
 /// Mixin that groups the non-constant `visitXConstructorInvoke` methods by