Fix typo in argument propagation

Change-Id: I5db7c3f62a9168555813afdd9b7b6ccc921d3a40

src/main/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagator.java

diff --git a/src/main/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagator.java b/src/main/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagator.java
index 1afbd3a..115f31d 100644
--- a/src/main/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagator.java
+++ b/src/main/java/com/android/tools/r8/optimize/argumentpropagation/ArgumentPropagator.java
@@ -88,7 +88,7 @@
           // Compute the mapping from virtual methods to their root virtual method and the set of
           // monomorphic virtual methods.
           new VirtualRootMethodsAnalysis(appView, immediateSubtypingInfo)
-              .extendVirtualRootMethods(appView.appInfo().classes(), codeScanner);
+              .extendVirtualRootMethods(classes, codeScanner);
         },
         executorService);