New analyzer_experimental snapshot.

pkg/analyzer_experimental/lib/src/analyzer_impl.dart

Index: pkg/analyzer_experimental/lib/src/analyzer_impl.dart
diff --git a/pkg/analyzer_experimental/lib/src/analyzer_impl.dart b/pkg/analyzer_experimental/lib/src/analyzer_impl.dart
index 2104617c3b789c58759d34ac15683dca9f661e96..c7beef72ad41fd5a5b415b05dd0d889cf8f85b46 100644
--- a/pkg/analyzer_experimental/lib/src/analyzer_impl.dart
+++ b/pkg/analyzer_experimental/lib/src/analyzer_impl.dart
@@ -48,7 +48,8 @@ class AnalyzerImpl {
       throw new ArgumentError("sourcePath cannot be null");
     }
     var sourceFile = new JavaFile(sourcePath);
-    var librarySource = new FileBasedSource.con1(contentCache, sourceFile);
+    var uriKind = getUriKind(sourceFile);
+    var librarySource = new FileBasedSource.con2(contentCache, sourceFile, uriKind);
     // resolve library
     prepareAnalysisContext(sourceFile);
     var libraryElement = context.computeLibraryElement(librarySource);
@@ -89,6 +90,7 @@ class AnalyzerImpl {
 
     // set options for context
     AnalysisOptionsImpl contextOptions = new AnalysisOptionsImpl();
+    contextOptions.cacheSize = 256;
     contextOptions.hint = !options.disableHints;
     context.analysisOptions = contextOptions;
   }
@@ -165,4 +167,22 @@ class AnalyzerImpl {
     // not found
     return null;
   }
+
+  /**
+   * Returns the [UriKind] for the given input file. Usually {@link UriKind#FILE_URI}, but if
+   * the given file is located in the "lib" directory of the [sdk], then returns
+   * {@link UriKind#DART_URI}.
+   */
+  static UriKind getUriKind(JavaFile file) {
+    // may be file in SDK
+    if (sdk is DirectoryBasedDartSdk) {
+      DirectoryBasedDartSdk directoryBasedSdk = sdk;
+      String sdkLibPath = directoryBasedSdk.libraryDirectory.getPath() + JavaFile.separator;
+      if (file.getPath().startsWith(sdkLibPath)) {
+        return UriKind.DART_URI;
+      }
+    }
+    // some generic file
+    return UriKind.FILE_URI;
+  }
 }