diff --git a/src/com/google/javascript/jscomp/AstValidator.java b/src/com/google/javascript/jscomp/AstValidator.java
index <HASH>..<HASH> 100644
--- a/src/com/google/javascript/jscomp/AstValidator.java
+++ b/src/com/google/javascript/jscomp/AstValidator.java
@@ -293,6 +293,7 @@ public final class AstValidator implements CompilerPass {
       case MUL:
       case MOD:
       case DIV:
+      case EXPONENT:
         validateBinaryOp(n);
         return;
Update AstValidator for exponentiation operator.

Also add some missing default cases to switch statements.
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Created by MOE: <URL>