Emit to StreamCodeOutput instead of CodeBuffer.

pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart

Index: pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
index a33b9c6e7312f41f923d95b50b40598027c8ed77..bd4e03bf72b9328bfdb43f9de988f42a66c48c0c 100644
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/old_emitter/interceptor_emitter.dart
@@ -13,7 +13,7 @@ class InterceptorEmitter extends CodeEmitterHelper {
     }
   }
 
-  void emitGetInterceptorMethod(CodeBuffer buffer,
+  void emitGetInterceptorMethod(CodeOutput output,
                                 String key,
                                 Set<ClassElement> classes) {
     InterceptorStubGenerator stubGenerator =
@@ -21,27 +21,27 @@ class InterceptorEmitter extends CodeEmitterHelper {
     jsAst.Expression function =
         stubGenerator.generateGetInterceptorMethod(classes);
 
-    buffer.write(jsAst.prettyPrint(
+    output.addBuffer(jsAst.prettyPrint(
         js('${namer.globalObjectFor(backend.interceptorsLibrary)}.# = #',
            [key, function]),
         compiler));
-    buffer.write(N);
+    output.add(N);
   }
 
   /**
    * Emit all versions of the [:getInterceptor:] method.
    */
-  void emitGetInterceptorMethods(CodeBuffer buffer) {
-    emitter.addComment('getInterceptor methods', buffer);
+  void emitGetInterceptorMethods(CodeOutput output) {
+    emitter.addComment('getInterceptor methods', output);
     Map<String, Set<ClassElement>> specializedGetInterceptors =
         backend.specializedGetInterceptors;
     for (String name in specializedGetInterceptors.keys.toList()..sort()) {
       Set<ClassElement> classes = specializedGetInterceptors[name];
-      emitGetInterceptorMethod(buffer, name, classes);
+      emitGetInterceptorMethod(output, name, classes);
     }
   }
 
-  void emitOneShotInterceptors(CodeBuffer buffer) {
+  void emitOneShotInterceptors(CodeOutput output) {
     List<String> names = backend.oneShotInterceptors.keys.toList();
     names.sort();
 
@@ -54,8 +54,8 @@ class InterceptorEmitter extends CodeEmitterHelper {
       jsAst.Expression assignment =
           js('${globalObject}.# = #', [name, function]);
 
-      buffer.write(jsAst.prettyPrint(assignment, compiler));
-      buffer.write(N);
+      output.addBuffer(jsAst.prettyPrint(assignment, compiler));
+      output.add(N);
     }
   }
 
@@ -66,7 +66,7 @@ class InterceptorEmitter extends CodeEmitterHelper {
    * [_invokeOn] will use it to determine whether it should call the
    * method with an extra parameter.
    */
-  void emitInterceptedNames(CodeBuffer buffer) {
+  void emitInterceptedNames(CodeOutput output) {
     // TODO(ahe): We should not generate the list of intercepted names at
     // compile time, it can be generated automatically at runtime given
     // subclasses of Interceptor (which can easily be identified).
@@ -85,8 +85,8 @@ class InterceptorEmitter extends CodeEmitterHelper {
     jsAst.Expression assignment =
         js('${emitter.isolateProperties}.# = #', [name, array]);
 
-    buffer.write(jsAst.prettyPrint(assignment, compiler));
-    buffer.write(N);
+    output.addBuffer(jsAst.prettyPrint(assignment, compiler));
+    output.add(N);
   }
 
   /**
@@ -94,7 +94,7 @@ class InterceptorEmitter extends CodeEmitterHelper {
    * [findInterceptorForType].  See declaration of [mapTypeToInterceptor] in
    * `interceptors.dart`.
    */
-  void emitMapTypeToInterceptor(CodeBuffer buffer) {
+  void emitMapTypeToInterceptor(CodeOutput output) {
     // TODO(sra): Perhaps inject a constant instead?
     CustomElementsAnalysis analysis = backend.customElementsAnalysis;
     if (!analysis.needsTable) return;
@@ -149,7 +149,7 @@ class InterceptorEmitter extends CodeEmitterHelper {
     jsAst.Expression assignment =
         js('${emitter.isolateProperties}.# = #', [name, array]);
 
-    buffer.write(jsAst.prettyPrint(assignment, compiler));
-    buffer.write(N);
+    output.addBuffer(jsAst.prettyPrint(assignment, compiler));
+    output.add(N);
   }
 }