Create non fatal exception when errors are not detailed with a FailureDetail.

PiperOrigin-RevId: 447471364

src/main/java/com/google/devtools/build/lib/query2/query/TargetEdgeErrorObserver.java

diff --git a/src/main/java/com/google/devtools/build/lib/query2/query/TargetEdgeErrorObserver.java b/src/main/java/com/google/devtools/build/lib/query2/query/TargetEdgeErrorObserver.java
index 6ce7f5d..2681228 100644
--- a/src/main/java/com/google/devtools/build/lib/query2/query/TargetEdgeErrorObserver.java
+++ b/src/main/java/com/google/devtools/build/lib/query2/query/TargetEdgeErrorObserver.java
@@ -15,6 +15,7 @@
 package com.google.devtools.build.lib.query2.query;
 
 import com.google.devtools.build.lib.bugreport.BugReport;
+import com.google.devtools.build.lib.bugreport.BugReport.NonFatalBugReport;
 import com.google.devtools.build.lib.cmdline.Label;
 import com.google.devtools.build.lib.concurrent.ThreadSafety;
 import com.google.devtools.build.lib.packages.Attribute;
@@ -59,7 +60,7 @@
   @Override
   public void missingEdge(Target target, Label label, NoSuchThingException e) {
     hasErrors = true;
-    errorCode.compareAndSet(/*expect=*/ null, /*update=*/ e.getDetailedExitCode());
+    errorCode.compareAndSet(/*expectedValue=*/ null, /*newValue=*/ e.getDetailedExitCode());
   }
 
   /**
@@ -93,11 +94,18 @@
       this.hasErrors = true;
       FailureDetail failureDetail = node.getPackage().getFailureDetail();
       if (failureDetail != null) {
-        errorCode.compareAndSet(/*expect=*/ null, /*update=*/ DetailedExitCode.of(failureDetail));
+        errorCode.compareAndSet(
+            /*expectedValue=*/ null, /*newValue=*/ DetailedExitCode.of(failureDetail));
       } else {
-        BugReport.sendBugReport(
-            new IllegalStateException("Undetailed error from package: " + node));
+        BugReport.sendBugReport(new UndetailedErrorFromPackageException(node));
       }
     }
   }
+
+  private static final class UndetailedErrorFromPackageException extends RuntimeException
+      implements NonFatalBugReport {
+    UndetailedErrorFromPackageException(Target node) {
+      super("Undetailed error from package: " + node);
+    }
+  }
 }