Fix handling of debug information for common return block

Change-Id: Idf3f930c8dbd16347edbf1ce6c5bd845129c4d27

src/test/debugTestResources/Locals.java

diff --git a/src/test/debugTestResources/Locals.java b/src/test/debugTestResources/Locals.java
index d42dd61..890cb85 100644
--- a/src/test/debugTestResources/Locals.java
+++ b/src/test/debugTestResources/Locals.java
@@ -244,6 +244,24 @@
     return sum + x + y;
   }
 
+  public static int argumentLiveAtReturn(int x) {
+    switch (x) {
+      case 0:
+        return 0;
+      case 1:
+        return 0;
+      case 2:
+        return 0;
+      case 100:
+        return 1;
+      case 101:
+        return 1;
+      case 102:
+        return 1;
+    }
+    return -1;
+  }
+
   public static void main(String[] args) {
     noLocals();
     unusedLocals();
@@ -259,5 +277,6 @@
     stepNonEmptyForLoopBody(3);
     tempInCase(42);
     localSwap(1, 2);
+    argumentLiveAtReturn(-1);
   }
 }