Allow Skyframe graph lookups and value retrievals to throw InterruptedException.

The only place we now don't handle InterruptedException is in the action graph created after analysis, since I'm not sure that will be around for that much longer.

--
MOS_MIGRATED_REVID=130327770

src/main/java/com/google/devtools/build/skyframe/EagerInvalidator.java

diff --git a/src/main/java/com/google/devtools/build/skyframe/EagerInvalidator.java b/src/main/java/com/google/devtools/build/skyframe/EagerInvalidator.java
index 5dba03d..71537e8 100644
--- a/src/main/java/com/google/devtools/build/skyframe/EagerInvalidator.java
+++ b/src/main/java/com/google/devtools/build/skyframe/EagerInvalidator.java
@@ -20,10 +20,8 @@
 import com.google.devtools.build.skyframe.InvalidatingNodeVisitor.DeletingNodeVisitor;
 import com.google.devtools.build.skyframe.InvalidatingNodeVisitor.DirtyingNodeVisitor;
 import com.google.devtools.build.skyframe.InvalidatingNodeVisitor.InvalidationState;
-
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.ForkJoinPool;
-
 import javax.annotation.Nullable;
 
 /**
@@ -106,8 +104,7 @@
             state,
             dirtyKeyTracker,
             forkJoinPool,
-            supportInterruptions,
-            errorHandler);
+            supportInterruptions);
   }
 
   /**
@@ -141,8 +138,7 @@
       InvalidationState state,
       DirtyKeyTracker dirtyKeyTracker,
       ForkJoinPool forkJoinPool,
-      boolean supportInterruptions,
-      ErrorHandler errorHandler)
+      boolean supportInterruptions)
       throws InterruptedException {
     DirtyingNodeVisitor visitor =
         createInvalidatingVisitorIfNeeded(
@@ -153,7 +149,7 @@
             dirtyKeyTracker,
             forkJoinPool,
             supportInterruptions,
-            errorHandler);
+            ErrorHandler.NullHandler.INSTANCE);
     if (visitor != null) {
       visitor.run();
     }