REST: Fixed indexed script/template tests

The clients don't have access to the error message
for matching purposes.  Rewritten tests to work
with the clients

rest-api-spec/test/script/10_basic.yaml

@@ -28,14 +28,26 @@
         id: "1"
         lang: "groovy"
         body: { "script":  "_score * foo bar + doc[\"myParent.weight\"].value" }
-  - match: { "error": /ElasticsearchIllegalArgumentException\SUnable\sto\sparse.*/ }
 
 
+  - do:
+      catch: /ElasticsearchIllegalArgumentException.Unable.to.parse.*/
+      put_script:
+        id: "1"
+        lang: "groovy"
+        body: { "script":  "_score * foo bar + doc[\"myParent.weight\"].value" }
+
   - do:
       catch: request
       put_script:
         id: "1"
         lang: "foobar"
         body: { "script" :  "_score * doc[\"myParent.weight\"].value" }
-  - match: { "error": /ElasticsearchIllegalArgumentException\Sscript_lang\snot\ssupported/ }
+
+  - do:
+      catch: /ElasticsearchIllegalArgumentException.script_lang.not.supported/
+      put_script:
+        id: "1"
+        lang: "foobar"
+        body: { "script" :  "_score * doc[\"myParent.weight\"].value" }
 

rest-api-spec/test/template/10_basic.yaml

@@ -25,4 +25,9 @@
       put_template:
         id: "1"
         body: { "template": { "query": { "match{{}}_all": {}}, "size": "{{my_size}}" } }
-  - match: { "error": /ElasticsearchIllegalArgumentException\SUnable\sto\sparse.*/ }
+
+  - do:
+      catch: /ElasticsearchIllegalArgumentException\SUnable\sto\sparse.*/
+      put_template:
+        id: "1"
+        body: { "template": { "query": { "match{{}}_all": {}}, "size": "{{my_size}}" } }