Remove directives validation.

pkg/analyzer/lib/src/task/dart.dart

Index: pkg/analyzer/lib/src/task/dart.dart
diff --git a/pkg/analyzer/lib/src/task/dart.dart b/pkg/analyzer/lib/src/task/dart.dart
index a89e52b6c7291e0ac24301059df0fec91bee446d..83a174b1a7ab35af91fd190fd8a2dc0e30e7a143 100644
--- a/pkg/analyzer/lib/src/task/dart.dart
+++ b/pkg/analyzer/lib/src/task/dart.dart
@@ -2243,17 +2243,13 @@ class VerifyUnitTask extends SourceBasedAnalysisTask {
     errorReporter = new ErrorReporter(errorListener, source);
     TypeProvider typeProvider = context.typeProvider;
     //
-    // Prepare inputs. TODO
+    // Prepare inputs.
     //
     CompilationUnit unit = getRequiredInput(UNIT_INPUT);
     CompilationUnitElement unitElement = unit.element;
     LibraryElement libraryElement = unitElement.library;
     //
-    // Validate the directives
-    //
-    _validateDirectives(unit);
-    //
-    // Use the ErrorVerifier to compute the rest of the errors.
+    // Use the ErrorVerifier to compute errors.
     //
     ErrorVerifier errorVerifier = new ErrorVerifier(errorReporter,
         libraryElement, typeProvider, new InheritanceManager(libraryElement));
@@ -2265,39 +2261,6 @@ class VerifyUnitTask extends SourceBasedAnalysisTask {
   }
 
   /**
-   * Check each directive in the given [unit] to see if the referenced source
-   * exists and report an error if it does not.
-   */
-  void _validateDirectives(CompilationUnit unit) {
-    for (Directive directive in unit.directives) {
-      if (directive is UriBasedDirective) {
-        _validateReferencedSource(directive);
-      }
-    }
-  }
-
-  /**
-   * Check the given [directive] to see if the referenced source exists and
-   * report an error if it does not.
-   */
-  void _validateReferencedSource(UriBasedDirective directive) {
-    Source source = directive.source;
-    if (source != null) {
-      if (context.exists(source)) {
-        return;
-      }
-    } else {
-      // Don't report errors already reported by ParseDartTask.resolveDirective
-      if (directive.validate() != null) {
-        return;
-      }
-    }
-    StringLiteral uriLiteral = directive.uri;
-    errorReporter.reportErrorForNode(CompileTimeErrorCode.URI_DOES_NOT_EXIST,
-        uriLiteral, [directive.uriContent]);
-  }
-
-  /**
    * Return a map from the names of the inputs of this kind of task to the task
    * input descriptors describing those inputs for a task with the
    * given [target].