Fix overflow in IRMetadata

Change-Id: I4a51d22ab4938855bc08fcc87c111e771a6f64ae
diff --git a/src/main/java/com/android/tools/r8/ir/code/IRMetadata.java b/src/main/java/com/android/tools/r8/ir/code/IRMetadata.java
index 2b2808b..da9f4dc 100644
--- a/src/main/java/com/android/tools/r8/ir/code/IRMetadata.java
+++ b/src/main/java/com/android/tools/r8/ir/code/IRMetadata.java
@@ -23,22 +23,22 @@
   private boolean get(int bit) {
     long masked;
     if (bit < 64) {
-      masked = first & (1 << bit);
+      masked = first & (1L << bit);
     } else {
       assert bit < 128;
       int adjusted = bit - 64;
-      masked = second & (1 << adjusted);
+      masked = second & (1L << adjusted);
     }
     return masked != 0;
   }
 
   private void set(int bit) {
     if (bit < 64) {
-      first |= (1 << bit);
+      first |= (1L << bit);
     } else {
       assert bit < 128;
       int adjusted = bit - 64;
-      second |= (1 << adjusted);
+      second |= (1L << adjusted);
     }
   }