Remove unused method from LibraryContext, use ElementResynthesizer directly.

pkg/analyzer/lib/src/dart/analysis/library_context.dart

Index: pkg/analyzer/lib/src/dart/analysis/library_context.dart
diff --git a/pkg/analyzer/lib/src/dart/analysis/library_context.dart b/pkg/analyzer/lib/src/dart/analysis/library_context.dart
index d728b6fe72843d2dd85c605775a17615de9b0e88..f9fa98081535d4ce05253147319454f27367df13 100644
--- a/pkg/analyzer/lib/src/dart/analysis/library_context.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/library_context.dart
@@ -10,6 +10,8 @@ import 'package:analyzer/error/error.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer/src/dart/analysis/file_state.dart';
+import 'package:analyzer/src/dart/element/element.dart';
+import 'package:analyzer/src/dart/element/handle.dart';
 import 'package:analyzer/src/generated/engine.dart'
     show AnalysisContext, AnalysisEngine, AnalysisOptions;
 import 'package:analyzer/src/generated/source.dart';
@@ -17,8 +19,6 @@ import 'package:analyzer/src/summary/format.dart';
 import 'package:analyzer/src/summary/idl.dart';
 import 'package:analyzer/src/summary/link.dart';
 import 'package:analyzer/src/summary/package_bundle_reader.dart';
-import 'package:analyzer/src/task/dart.dart' show COMPILATION_UNIT_ELEMENT;
-import 'package:analyzer/task/dart.dart' show LibrarySpecificUnit;
 import 'package:front_end/src/base/performace_logger.dart';
 import 'package:front_end/src/byte_store/byte_store.dart';
 
@@ -37,6 +37,11 @@ class LibraryContext {
    */
   final AnalysisContext _analysisContext;
 
+  /**
+   * The resynthesizer that resynthesizes elements in [_analysisContext].
+   */
+  final ElementResynthesizer _resynthesizer;
+
   /**
    * Create a [LibraryContext] which is prepared to analyze [targetLibrary].
    */
@@ -132,24 +137,27 @@ class LibraryContext {
         byteStore.put(key, bytes);
       });
 
-      AnalysisContextImpl analysisContext = _createAnalysisContext(
+      var resynthesizingContext = _createResynthesizingContext(
           options, declaredVariables, sourceFactory, store);
-      analysisContext.contentCache = new _ContentCacheWrapper(fsState);
+      resynthesizingContext.context.contentCache =
+          new _ContentCacheWrapper(fsState);
 
-      return new LibraryContext._(store, analysisContext);
+      return new LibraryContext._(store, resynthesizingContext.context,
+          resynthesizingContext.resynthesizer);
     });
   }
 
-  LibraryContext._(this.store, this._analysisContext);
+  LibraryContext._(this.store, this._analysisContext, this._resynthesizer);
 
   /**
    * Computes a [CompilationUnitElement] for the given library/unit pair.
    */
   CompilationUnitElement computeUnitElement(
       Source librarySource, Source unitSource) {
-    return _analysisContext.computeResult(
-        new LibrarySpecificUnit(librarySource, unitSource),
-        COMPILATION_UNIT_ELEMENT);
+    String libraryUri = librarySource.uri.toString();
+    String unitUri = unitSource.uri.toString();
+    return _resynthesizer.getElement(
+        new ElementLocationImpl.con3(<String>[libraryUri, unitUri]));
   }
 
   /**
@@ -161,17 +169,6 @@ class LibraryContext {
     _analysisContext.dispose();
   }
 
-  /**
-   * Computes a resolved [CompilationUnit] and a list of [AnalysisError]s for
-   * the given library/unit pair.
-   */
-  ResolutionResult resolveUnit(Source librarySource, Source unitSource) {
-    CompilationUnit resolvedUnit =
-        _analysisContext.resolveCompilationUnit2(unitSource, librarySource);
-    List<AnalysisError> errors = _analysisContext.computeErrors(unitSource);
-    return new ResolutionResult(resolvedUnit, errors);
-  }
-
   /**
    * Resynthesize the [LibraryElement] from the given [store].
    */
@@ -181,18 +178,17 @@ class LibraryContext {
       SourceFactory sourceFactory,
       SummaryDataStore store,
       String uri) {
-    AnalysisContextImpl analysisContext = _createAnalysisContext(
+    var resynthesizingContext = _createResynthesizingContext(
         analysisOptions, declaredVariables, sourceFactory, store);
     try {
-      return new StoreBasedSummaryResynthesizer(
-              analysisContext, sourceFactory, analysisOptions.strongMode, store)
-          .getLibraryElement(uri);
+      return resynthesizingContext.resynthesizer
+          .getElement(new ElementLocationImpl.con3([uri]));
     } finally {
-      analysisContext.dispose();
+      resynthesizingContext.context.dispose();
     }
   }
 
-  static AnalysisContextImpl _createAnalysisContext(
+  static _ResynthesizingAnalysisContext _createResynthesizingContext(
       AnalysisOptions analysisOptions,
       DeclaredVariables declaredVariables,
       SourceFactory sourceFactory,
@@ -203,9 +199,10 @@ class LibraryContext {
     analysisContext.analysisOptions = analysisOptions;
     analysisContext.declaredVariables.addAll(declaredVariables);
     analysisContext.sourceFactory = sourceFactory.clone();
-    analysisContext.resultProvider =
-        new InputPackagesResultProvider(analysisContext, store);
-    return analysisContext;
+    var provider = new InputPackagesResultProvider(analysisContext, store);
+    analysisContext.resultProvider = provider;
+    return new _ResynthesizingAnalysisContext(
+        analysisContext, provider.resynthesizer);
   }
 }
 
@@ -268,3 +265,13 @@ class _ContentCacheWrapper implements ContentCache {
     return fsState.getFileForPath(path);
   }
 }
+
+/**
+ * Container with analysis context and the corresponding resynthesizer.
+ */
+class _ResynthesizingAnalysisContext {
+  final AnalysisContextImpl context;
+  final ElementResynthesizer resynthesizer;
+
+  _ResynthesizingAnalysisContext(this.context, this.resynthesizer);
+}