Fixing whitelist

Author: eyalkoren

modules/ingest-common/src/yamlRestTest/resources/rest-api-spec/test/ingest/210_conditional_processor.yml

@@ -107,6 +107,6 @@ teardown:
         index: test
         id: "1"
   - match: { _source.bytes_source_field: "1kb" }
-  - match: { _source.conditional.field: "bar" }
   - match: { _source.bytes_target_field: 1024 }
 
+

modules/lang-painless/src/main/resources/org/elasticsearch/painless/org.elasticsearch.script.processor_conditional.txt

@@ -35,3 +35,12 @@ class org.elasticsearch.script.field.WriteField {
     NestedDocument doc(int)
     Iterable docs()
 }
+
+class org.elasticsearch.script.field.NestedDocument {
+    WriteField field(String)
+    Stream fields(String)
+    boolean isEmpty()
+    int size()
+    boolean exists()
+    void remove()
+}