Reindex: Fold "with all deps" project into reindex (#30154)

This folds the `:qa:smoke-test-reindex-with-all-modules` project into
`:modules:reindex` by declaring the reindex's integration testing
cluster requires the `parent-join` and `lang-painless` plugins and then
moving all of the integration tests that depended on parent-join and
painless into reindex.

It saves us one cluster start up during the build at the cost of a
little of the reindex module's "purity". Since the reindex module *does*
have unit tests that test scripting without painless I'm fairly ok with
that.

modules/reindex/build.gradle

@@ -30,11 +30,17 @@ esplugin {
 }
 
 integTestCluster {
+  // Modules who's integration is explicitly tested in integration tests
+  module project(':modules:parent-join')
+  module project(':modules:lang-painless')
   // Whitelist reindexing from the local node so we can test reindex-from-remote.
   setting 'reindex.remote.whitelist', '127.0.0.1:*'
 }
 
 run {
+  // Modules who's integration is explicitly tested in integration tests
+  module project(':modules:parent-join')
+  module project(':modules:lang-painless')
   // Whitelist reindexing from the local node so we can test reindex-from-remote.
   setting 'reindex.remote.whitelist', '127.0.0.1:*'
 }

qa/smoke-test-reindex-with-all-modules/src/test/resources/rest-api-spec/test/reindex/40_search_failures.yml → modules/reindex/src/test/resources/rest-api-spec/test/reindex/35_search_failures.yml

@@ -1,5 +1,5 @@
 ---
-"Response format search failures":
+"Response format for search failures":
   - do:
       index:
         index:   source

qa/smoke-test-reindex-with-all-modules/src/test/resources/rest-api-spec/test/reindex/10_script.yml → modules/reindex/src/test/resources/rest-api-spec/test/reindex/85_scripting.yml

@@ -433,3 +433,28 @@
   - match:  { docs.2._index:     index2      }
   - match:  { docs.2._type:      type2       }
   - match:  { docs.2._id:        fr_789      }
+
+---
+"Totally broken scripts report the error properly":
+  - do:
+      index:
+        index:  twitter
+        type:   tweet
+        id:     1
+        body:   { "user": "kimchy" }
+  - do:
+      indices.refresh: {}
+
+  - do:
+      catch: request
+      reindex:
+        refresh: true
+        body:
+          source:
+            index: twitter
+          dest:
+            index: new_twitter
+          script:
+            lang: painless
+            source: syntax errors are fun!
+  - match: {error.reason: 'compile error'}

qa/smoke-test-reindex-with-all-modules/src/test/resources/rest-api-spec/test/update_by_query/40_search_failure.yml → modules/reindex/src/test/resources/rest-api-spec/test/update_by_query/35_search_failure.yml

@@ -1,5 +1,5 @@
 ---
-"Response format search failures":
+"Response format for search failures":
   - do:
       index:
         index:   source

qa/smoke-test-reindex-with-all-modules/src/test/resources/rest-api-spec/test/update_by_query/10_script.yml → modules/reindex/src/test/resources/rest-api-spec/test/update_by_query/80_scripting.yml

@@ -421,3 +421,25 @@
             term:
               level: 11
   - match: { hits.total: 0 }
+
+---
+"Totally broken scripts report the error properly":
+  - do:
+      index:
+        index:  twitter
+        type:   tweet
+        id:     1
+        body:   { "user": "kimchy" }
+  - do:
+      indices.refresh: {}
+
+  - do:
+      catch: request
+      update_by_query:
+        index:   twitter
+        refresh: true
+        body:
+          script:
+            lang: painless
+            source: syntax errors are fun!
+  - match: {error.reason: 'compile error'}