Search Index equals method has bug

[gurminder71]

I see couple of equal methods are missing. But the following is a bug:

diff --git a/src/main/java/com/google/cloud/solutions/spannerddl/parser/ASTcreate_search_index_statement.java b/src/main/java/com/google/cloud/solutions/spannerddl/parser/ASTcreate_search_index_statement.java
index 8e10e35..24ce51b 100644
--- a/src/main/java/com/google/cloud/solutions/spannerddl/parser/ASTcreate_search_index_statement.java
+++ b/src/main/java/com/google/cloud/solutions/spannerddl/parser/ASTcreate_search_index_statement.java
@@ -99,7 +99,7 @@ public class ASTcreate_search_index_statement extends SimpleNode
 
   @Override
   public boolean equals(Object other) {
-    if (other instanceof ASTcreate_index_statement) {
+    if (other instanceof ASTcreate_search_index_statement) {
       return this.toString().equals(other.toString());
     }
     return false;