Fix nimsuggest not showing suggestions for imported tuples (#22241)

* Add tests

Also test if exported all tuple fields works. This seems like a hacky solution so will try and dive further to find a better solution

* Always suggest tuple fields if it passes the filter

If the tuple we are accessing is in scope then all the fields will also be in scope

* Update tests so line numbers are correct

(cherry picked from commit 1b132ddaa2)

compiler/suggest.nim

@@ -439,7 +439,15 @@ proc suggestFieldAccess(c: PContext, n, field: PNode, outputs: var Suggestions)
         if t[0] == nil: break
         t = skipTypes(t[0], skipPtrs)
     elif typ.kind == tyTuple and typ.n != nil:
-      suggestSymList(c, typ.n, field, n.info, outputs)
+      # All tuple fields are in scope
+      # So go through each field and add it to the suggestions (If it passes the filter)
+      for node in typ.n:
+        if node.kind == nkSym:
+          let s = node.sym
+          var pm: PrefixMatch
+          if filterSym(s, field, pm):
+            outputs.add(symToSuggest(c.graph, s, isLocal=true, ideSug, n.info,
+                                     s.getQuality, pm, c.inTypeContext > 0, 0))
 
     suggestOperations(c, n, field, orig, outputs)
     if typ != orig:

nimsuggest/tests/module_20265.nim

@@ -0,0 +1,6 @@
+type A* = tuple
+  a: int
+  b: int
+
+var x*: A = (a: 2, b: 10)
+var y* = (a: 2, b: 10)

nimsuggest/tests/t20265_1.nim

@@ -0,0 +1,8 @@
+discard """
+$nimsuggest --tester $file
+>sug $1
+sug;;skField;;a;;int;;*module_20265.nim;;6;;10;;"";;100;;None
+sug;;skField;;b;;int;;*module_20265.nim;;6;;16;;"";;100;;None
+"""
+import module_20265
+y.#[!]#

nimsuggest/tests/t20265_2.nim

@@ -0,0 +1,8 @@
+discard """
+$nimsuggest --tester $file
+>sug $1
+sug;;skField;;a;;int;;*module_20265.nim;;2;;2;;"";;100;;None
+sug;;skField;;b;;int;;*module_20265.nim;;3;;2;;"";;100;;None
+"""
+import module_20265
+x.#[!]#