Pay some naming debt.

pkg/front_end/lib/src/fasta/source/outline_builder.dart

Index: pkg/front_end/lib/src/fasta/source/outline_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/source/outline_builder.dart b/pkg/front_end/lib/src/fasta/source/outline_builder.dart
index 95e49b79091f5ccd0c295670dfc527bae2279553..68d70fb9af3936cd49c95cff970c200a5a451517 100644
--- a/pkg/front_end/lib/src/fasta/source/outline_builder.dart
+++ b/pkg/front_end/lib/src/fasta/source/outline_builder.dart
@@ -183,8 +183,8 @@ class OutlineBuilder extends UnhandledListener {
   }
 
   @override
-  void beginClassDeclaration(Token token) {
-    library.beginNestedScope();
+  void beginClassDeclaration(Token begin) {
+    library.beginNestedDeclaration();
   }
 
   @override
@@ -211,7 +211,7 @@ class OutlineBuilder extends UnhandledListener {
 
   @override
   void beginTopLevelMethod(Token token, Token name) {
-    library.beginNestedScope(hasMembers: false);
+    library.beginNestedDeclaration(hasMembers: false);
   }
 
   @override
@@ -246,7 +246,7 @@ class OutlineBuilder extends UnhandledListener {
 
   @override
   void beginMethod(Token token, Token name) {
-    library.beginNestedScope(hasMembers: false);
+    library.beginNestedDeclaration(hasMembers: false);
   }
 
   @override
@@ -282,7 +282,7 @@ class OutlineBuilder extends UnhandledListener {
 
   @override
   void beginNamedMixinApplication(Token token) {
-    library.beginNestedScope(hasMembers: false);
+    library.beginNestedDeclaration(hasMembers: false);
   }
 
   @override
@@ -311,7 +311,7 @@ class OutlineBuilder extends UnhandledListener {
     debugEvent("Type");
     List<TypeBuilder> arguments = pop();
     String name = pop();
-    push(library.addInterfaceType(name, arguments));
+    push(library.addNamedType(name, arguments));
   }
 
   @override
@@ -412,7 +412,7 @@ class OutlineBuilder extends UnhandledListener {
 
   @override
   void beginFunctionTypeAlias(Token token) {
-    library.beginNestedScope();
+    library.beginNestedDeclaration(hasMembers: false);
   }
 
   @override