Use common.dart to re-export commonly used entities.

pkg/compiler/lib/src/js_emitter/full_emitter/emitter.dart

Index: pkg/compiler/lib/src/js_emitter/full_emitter/emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/full_emitter/emitter.dart b/pkg/compiler/lib/src/js_emitter/full_emitter/emitter.dart
index 10e20d86d92a30cadd5ce4dfa9ef026947339452..4c3fe36b25da0fe5b2b53ef5524372a3abf0e1bb 100644
--- a/pkg/compiler/lib/src/js_emitter/full_emitter/emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/full_emitter/emitter.dart
@@ -13,52 +13,47 @@ import 'package:js_runtime/shared/embedded_names.dart' show
     JsGetName;
 
 import '../headers.dart';
-
 import '../js_emitter.dart' hide Emitter;
 import '../js_emitter.dart' as js_emitter show Emitter;
-
 import '../model.dart';
 import '../program_builder/program_builder.dart';
 
 import '../../common.dart';
-
+import '../../common/names.dart' show
+    Names;
+import '../../compiler.dart' show
+    Compiler;
 import '../../constants/values.dart';
-
+import '../../dart_types.dart' show
+    DartType;
 import '../../deferred_load.dart' show OutputUnit;
-
-import '../../diagnostics/diagnostic_listener.dart' show
-    DiagnosticReporter;
-
-import '../../diagnostics/messages.dart' show
-    MessageKind;
-
-import '../../diagnostics/spannable.dart' show
-    NO_LOCATION_SPANNABLE;
-
 import '../../elements/elements.dart' show
+    ClassElement,
     ConstructorBodyElement,
+    Element,
+    Elements,
     ElementKind,
     FieldElement,
+    FunctionElement,
+    FunctionSignature,
+    LibraryElement,
+    MetadataAnnotation,
+    MethodElement,
+    MemberElement,
     Name,
     ParameterElement,
+    TypedefElement,
     TypeVariableElement,
-    MethodElement,
-    MemberElement;
-
+    VariableElement;
 import '../../hash/sha1.dart' show Hasher;
-
 import '../../io/code_output.dart';
-
 import '../../io/line_column_provider.dart' show
     LineColumnCollector,
     LineColumnProvider;
-
 import '../../io/source_map_builder.dart' show
     SourceMapBuilder;
-
 import '../../js/js.dart' as jsAst;
 import '../../js/js.dart' show js;
-
 import '../../js_backend/js_backend.dart' show
     CheckedModeHelper,
     CompoundName,
@@ -74,7 +69,10 @@ import '../../js_backend/js_backend.dart' show
     TypeCheck,
     TypeChecks,
     TypeVariableHandler;
-
+import '../../universe/call_structure.dart' show
+    CallStructure;
+import '../../universe/selector.dart' show
+    Selector;
 import '../../util/characters.dart' show
     $$,
     $A,
@@ -83,10 +81,8 @@ import '../../util/characters.dart' show
     $Z,
     $a,
     $z;
-
 import '../../util/uri_extras.dart' show
     relativize;
-
 import '../../util/util.dart' show
     equalElements;