Provide more reporting options to SkyFunctions 

With more specific information to be reported by Skyfunctions, e.g.,
to inform the build-event protocol on missing files, the EventHandler
interface is no longer enough. Therefore, provide an enriched context
for reporting events.

--
Change-Id: I2d06166fe4d5b9054e24ad8c752fafc039e3f9f8
Reviewed-on: https://cr.bazel.build/8794
PiperOrigin-RevId: 148463437
MOS_MIGRATED_REVID=148463437
diff --git a/src/main/java/com/google/devtools/build/lib/query2/SkyQueryEnvironment.java b/src/main/java/com/google/devtools/build/lib/query2/SkyQueryEnvironment.java
index 93e4b11..3e1410f 100644
--- a/src/main/java/com/google/devtools/build/lib/query2/SkyQueryEnvironment.java
+++ b/src/main/java/com/google/devtools/build/lib/query2/SkyQueryEnvironment.java
@@ -39,7 +39,7 @@
 import com.google.devtools.build.lib.concurrent.NamedForkJoinPool;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
 import com.google.devtools.build.lib.events.Event;
-import com.google.devtools.build.lib.events.EventHandler;
+import com.google.devtools.build.lib.events.ExtendedEventHandler;
 import com.google.devtools.build.lib.graph.Digraph;
 import com.google.devtools.build.lib.packages.BuildFileContainsErrorsException;
 import com.google.devtools.build.lib.packages.DependencyFilter;
@@ -148,7 +148,7 @@
   public SkyQueryEnvironment(
       boolean keepGoing,
       int loadingPhaseThreads,
-      EventHandler eventHandler,
+      ExtendedEventHandler eventHandler,
       Set<Setting> settings,
       Iterable<QueryFunction> extraFunctions,
       QueryExpressionEvalListener<Target> evalListener,
@@ -176,7 +176,7 @@
       boolean keepGoing,
       int loadingPhaseThreads,
       int queryEvaluationParallelismLevel,
-      EventHandler eventHandler,
+      ExtendedEventHandler eventHandler,
       Set<Setting> settings,
       Iterable<QueryFunction> extraFunctions,
       QueryExpressionEvalListener<Target> evalListener,