gopls/internal/test/marker: organize mcp tool context test

To avoid confusion, different kind contest test have its own package,
and the test is always triggered from testkind/main.go.

For golang/go#73580

Change-Id: I6197d30ed4c8b4813f44efdbc45bb46162116006
Reviewed-on: https://go-review.googlesource.com/c/tools/+/678155
Auto-Submit: Hongxiang Jiang <hxjiang@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

Author: h9jiang

gopls/internal/test/marker/testdata/mcptools/context.txt

@@ -7,7 +7,21 @@ This test exercises mcp tool context.
 -- go.mod --
 module example.com
 
--- comment/doc.go --
+-- commenttest/main.go --
+package main
+
+import(
+    "example.com/commenttest/comment"
+)
+
+func testComment() { //@loc(comment, "test")
+    comment.Foo("", 0)
+    function.Foo(0, "")
+}
+
+//@mcptool("context", `{}`, comment, output=withComment)
+
+-- commenttest/comment/doc.go --
 // Copyright 2025 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
@@ -17,17 +31,17 @@ Package doc for package comment.
 */
 package comment
 
--- comment/foo.go --
-// File doc for foo.go part 1.
+-- commenttest/comment/comment.go --
+// File doc for comment.go part 1.
 package comment
 
-// File doc for foo.go part 2.
+// File doc for comment.go part 2.
 import (
     // comment for package renaming.
     myfmt "fmt"
 )
 
-// File doc for foo.go part 3.
+// File doc for comment.go part 3.
 
 // Func doc for comment.Foo
 func Foo(foo string, _ int) {
@@ -36,61 +50,60 @@ func Foo(foo string, _ int) {
 
 // Random comment floating around.
 
--- comment.go --
-package main
-
-import(
-    "example.com/comment"
-)
-
-func testComment() { //@loc(comment, "test")
-    comment.Foo("", 0)
-    function.Foo(0, "")
-}
-
-//@mcptool("context", `{}`, comment, output=withComment)
-
 -- @withComment --
 Code blocks are delimited by --->...<--- markers.
 
-Current file "comment.go" contains this import declaration:
+Current file "main.go" contains this import declaration:
 --->
 import(
-    "example.com/comment"
+    "example.com/commenttest/comment"
 )
 <---
 
 The imported packages declare the following symbols:
 
-example.com/comment (package comment)
-doc.go:
---->
-/*
-Package doc for package comment.
-*/
-package comment
-
-<---
-
-foo.go:
+example.com/commenttest/comment (package comment)
+comment.go:
 --->
-// File doc for foo.go part 1.
+// File doc for comment.go part 1.
 package comment
 
-// File doc for foo.go part 2.
+// File doc for comment.go part 2.
 import (
     // comment for package renaming.
     myfmt "fmt"
 )
 
-// File doc for foo.go part 3.
+// File doc for comment.go part 3.
 
 // Func doc for comment.Foo
 func Foo(foo string, _ int)
 
 <---
 
--- function/foo.go --
+doc.go:
+--->
+/*
+Package doc for package comment.
+*/
+package comment
+
+<---
+
+-- functiontest/main.go --
+package main
+
+import(
+    "example.com/functiontest/function"
+)
+
+func testFunction() { //@loc(function, "test")
+    function.Foo(0, "")
+}
+
+//@mcptool("context", `{}`, function, output=withFunction)
+
+-- functiontest/function/function.go --
 package function
 
 func Foo(int, string) {}
@@ -109,33 +122,20 @@ func (*Exported) unexported(int) {}
 
 func (*Exported) Exported(int) {}
 
--- function.go --
-package main
-
-import(
-    "example.com/function"
-)
-
-func testFunction() { //@loc(function, "test")
-    function.Foo(0, "")
-}
-
-//@mcptool("context", `{}`, function, output=withFunction)
-
 -- @withFunction --
 Code blocks are delimited by --->...<--- markers.
 
-Current file "function.go" contains this import declaration:
+Current file "main.go" contains this import declaration:
 --->
 import(
-    "example.com/function"
+    "example.com/functiontest/function"
 )
 <---
 
 The imported packages declare the following symbols:
 
-example.com/function (package function)
-foo.go:
+example.com/functiontest/function (package function)
+function.go:
 --->
 package function
 
@@ -147,18 +147,18 @@ func (*Exported) Exported(int)
 
 <---
 
--- type.go --
+-- typetest/main.go --
 package main
 
 import(
-    "example.com/types"
+    "example.com/typetest/types"
 )
 
 var x types.Exported //@loc(types, "x")
 
 //@mcptool("context", `{}`, types, output=withType)
 
--- types/types.go --
+-- typetest/types/types.go --
 package types
 
 // Doc for exported.
@@ -192,16 +192,16 @@ type (
 -- @withType --
 Code blocks are delimited by --->...<--- markers.
 
-Current file "type.go" contains this import declaration:
+Current file "main.go" contains this import declaration:
 --->
 import(
-    "example.com/types"
+    "example.com/typetest/types"
 )
 <---
 
 The imported packages declare the following symbols:
 
-example.com/types (package types)
+example.com/typetest/types (package types)
 types.go:
 --->
 package types
@@ -229,18 +229,18 @@ type (
 
 <---
 
--- value.go --
+-- valuetest/main.go --
 package main
 
 import(
-    "example.com/values"
+    "example.com/valuetest/values"
 )
 
 var y values.ConstFoo //@loc(values, "y")
 
 //@mcptool("context", `{}`, values, output=withValue)
 
--- values/consts.go --
+-- valuetest/values/consts.go --
 package values
 
 const (
@@ -260,7 +260,7 @@ const ConstExported = "Exported" // comment for ConstExported
 // doc for constUnexported
 var constUnexported = "unexported" // comment for constUnexported
 
--- values/vars.go --
+-- valuetest/values/vars.go --
 package values
 
 var (
@@ -283,16 +283,16 @@ var varUnexported = "unexported" // comment for varUnexported
 -- @withValue --
 Code blocks are delimited by --->...<--- markers.
 
-Current file "value.go" contains this import declaration:
+Current file "main.go" contains this import declaration:
 --->
 import(
-    "example.com/values"
+    "example.com/valuetest/values"
 )
 <---
 
 The imported packages declare the following symbols:
 
-example.com/values (package values)
+example.com/valuetest/values (package values)
 consts.go:
 --->
 package values