Unmute field collapsing rest tests

BWC tests can run now that master and 6x branch are aligned.
Closes #32055

Author: jimczi

rest-api-spec/src/main/resources/rest-api-spec/test/search.inner_hits/10_basic.yml

@@ -13,9 +13,8 @@ setup:
 ---
 "Nested inner hits":
     - skip:
-        version: "all"
-        reason: "https://github.com/elastic/elasticsearch/issues/32055"
-
+        version: " - 6.1.99"
+        reason: "<= 6.1 nodes don't always include index or id in nested inner hits"
     - do:
         index:
           index: test
@@ -46,8 +45,8 @@ setup:
 "Nested doc version and seqIDs":
 
     - skip:
-        version: "all"
-        reason: "https://github.com/elastic/elasticsearch/issues/32055"
+        version: " - 6.3.99"
+        reason:  "object notation for docvalue_fields was introduced in 6.4"
 
     - do:
         index:

rest-api-spec/src/main/resources/rest-api-spec/test/search/110_field_collapsing.yml

@@ -107,9 +107,6 @@ setup:
 
 ---
 "field collapsing and inner_hits":
-  - skip:
-      version: "all"
-      reason: "https://github.com/elastic/elasticsearch/issues/32055"
 
   - do:
       search:
@@ -149,9 +146,6 @@ setup:
 
 ---
 "field collapsing, inner_hits and maxConcurrentGroupRequests":
-  - skip:
-      version: "all"
-      reason: "https://github.com/elastic/elasticsearch/issues/32055"
 
   - do:
       search:
@@ -232,9 +226,6 @@ setup:
 
 ---
 "no hits and inner_hits":
-  - skip:
-      version: "all"
-      reason: "https://github.com/elastic/elasticsearch/issues/32055"
 
   - do:
       search:
@@ -249,9 +240,6 @@ setup:
 
 ---
 "field collapsing and multiple inner_hits":
-  - skip:
-      version: "all"
-      reason: "https://github.com/elastic/elasticsearch/issues/32055"
 
   - do:
       search:
@@ -304,9 +292,10 @@ setup:
 
 ---
 "field collapsing, inner_hits and version":
+
   - skip:
-      version: "all"
-      reason: "https://github.com/elastic/elasticsearch/issues/32055"
+      version: " - 6.1.0"
+      reason:  "bug fixed in 6.1.1"
 
   - do:
       search: