Update from Google.

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MOE_MIGRATED_REVID=85702957
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/AnalysisFailureEvent.java b/src/main/java/com/google/devtools/build/lib/analysis/AnalysisFailureEvent.java
new file mode 100644
index 0000000..5064163
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/analysis/AnalysisFailureEvent.java
@@ -0,0 +1,40 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.devtools.build.lib.analysis;
+
+import com.google.devtools.build.lib.syntax.Label;
+
+/**
+ * This event is fired during the build, when it becomes known that the analysis
+ * of a target cannot be completed because of an error in one of its
+ * dependencies.
+ */
+public class AnalysisFailureEvent {
+  private final LabelAndConfiguration failedTarget;
+  private final Label failureReason;
+
+  public AnalysisFailureEvent(LabelAndConfiguration failedTarget, Label failureReason) {
+    this.failedTarget = failedTarget;
+    this.failureReason = failureReason;
+  }
+
+  public LabelAndConfiguration getFailedTarget() {
+    return failedTarget;
+  }
+
+  public Label getFailureReason() {
+    return failureReason;
+  }
+}