Added support for python pattern list as collection item (#2483)

## Checklist

- [x] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [/] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [/] I have not broken the cheatsheet

Author: AndreasArvidsson

data/fixtures/scopes/python/collectionItem.unenclosed.iteration4.scope

@@ -0,0 +1,8 @@
+for key, value in map.items():
+    pass
+---
+
+[Range] =
+[Domain] = 0:4-0:14
+      >----------<
+0| for key, value in map.items():

data/fixtures/scopes/python/collectionItem.unenclosed7.scope

@@ -0,0 +1,34 @@
+for key, value in map.items():
+    pass
+---
+
+[#1 Content] =
+[#1 Domain] = 0:4-0:7
+      >---<
+0| for key, value in map.items():
+
+[#1 Removal] = 0:4-0:9
+      >-----<
+0| for key, value in map.items():
+
+[#1 Trailing delimiter] = 0:7-0:9
+         >--<
+0| for key, value in map.items():
+
+[#1 Insertion delimiter] = ", "
+
+
+[#2 Content] =
+[#2 Domain] = 0:9-0:14
+           >-----<
+0| for key, value in map.items():
+
+[#2 Removal] = 0:7-0:14
+         >-------<
+0| for key, value in map.items():
+
+[#2 Leading delimiter] = 0:7-0:9
+         >--<
+0| for key, value in map.items():
+
+[#2 Insertion delimiter] = ", "

queries/python.scm

@@ -548,6 +548,19 @@
   (#insertion-delimiter! @collectionItem ", ")
 )
 
+;;!! for key, value in map.items():
+;;!      ^^^  ^^^^^
+(
+  (pattern_list
+    (identifier)? @_.leading.endOf
+    .
+    (identifier) @collectionItem
+    .
+    (identifier)? @_.trailing.startOf
+  )
+  (#insertion-delimiter! @collectionItem ", ")
+)
+
 (import_statement
   .
   (_) @collectionItem.iteration.start.startOf
@@ -563,6 +576,9 @@
   .
   (_) @collectionItem.iteration.start.startOf
 ) @collectionItem.iteration.end.endOf @collectionItem.iteration.domain
+
+(pattern_list) @collectionItem.iteration
+
 ;;!! def foo(name) {}
 ;;!          ^^^^
 (