Add tests

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_aliased_constant.snap

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+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\npub const something = 10\n\npub fn main() {\n  something + { 4 * something }\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+import app.{something as some_constant}
+
+fn wibble() {
+  some_constant
+}
+
+
+-- app.gleam
+
+pub const something = 10
+          ↑             
+
+pub fn main() {
+  something + { 4 * something }
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+import app.{ten as some_constant}
+
+fn wibble() {
+  some_constant
+}
+
+
+-- app.gleam
+
+pub const ten = 10
+
+pub fn main() {
+  ten + { 4 * ten }
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_aliased_function.snap

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+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\npub fn something() {\n  something()\n}\n\nfn something_else() {\n  something()\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+import app.{something as something_else}
+
+fn wibble() {
+  something_else()
+}
+
+
+-- app.gleam
+
+pub fn something() {
+       ↑            
+  something()
+}
+
+fn something_else() {
+  something()
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+import app.{some_function as something_else}
+
+fn wibble() {
+  something_else()
+}
+
+
+-- app.gleam
+
+pub fn some_function() {
+  some_function()
+}
+
+fn something_else() {
+  some_function()
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_aliased_type_variant.snap

@@ -0,0 +1,45 @@
+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\npub type Wibble {\n  Constructor(Int)\n}\n\npub fn main() {\n  Constructor(42)\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+import app.{Constructor as ValueConstructor}
+
+fn wibble() {
+  ValueConstructor(172)
+}
+
+
+-- app.gleam
+
+pub type Wibble {
+  Constructor(Int)
+  ↑               
+}
+
+pub fn main() {
+  Constructor(42)
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+import app.{MakeAWibble as ValueConstructor}
+
+fn wibble() {
+  ValueConstructor(172)
+}
+
+
+-- app.gleam
+
+pub type Wibble {
+  MakeAWibble(Int)
+}
+
+pub fn main() {
+  MakeAWibble(42)
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_constant_from_definition.snap

@@ -0,0 +1,41 @@
+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\npub const something = 10\n\npub fn main() {\n  something + { 4 * something }\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+import app
+
+fn wibble() {
+  app.something
+}
+
+
+-- app.gleam
+
+pub const something = 10
+          ↑             
+
+pub fn main() {
+  something + { 4 * something }
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+import app
+
+fn wibble() {
+  app.ten
+}
+
+
+-- app.gleam
+
+pub const ten = 10
+
+pub fn main() {
+  ten + { 4 * ten }
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_constant_from_qualified_reference.snap

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+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\nimport mod\n\npub fn main() {\n  mod.something\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+pub const something = 10
+
+fn wibble() {
+  something
+}
+
+
+-- app.gleam
+
+import mod
+
+pub fn main() {
+  mod.something
+      ↑        
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+pub const ten = 10
+
+fn wibble() {
+  ten
+}
+
+
+-- app.gleam
+
+import mod
+
+pub fn main() {
+  mod.ten
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_constant_from_reference.snap

@@ -0,0 +1,41 @@
+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\npub const something = 10\n\npub fn main() {\n  something + { 4 * something }\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+import app
+
+fn wibble() {
+  app.something
+}
+
+
+-- app.gleam
+
+pub const something = 10
+
+pub fn main() {
+  something + { 4 * something }
+  ↑                            
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+import app
+
+fn wibble() {
+  app.ten
+}
+
+
+-- app.gleam
+
+pub const ten = 10
+
+pub fn main() {
+  ten + { 4 * ten }
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_constant_from_unqualified_reference.snap

@@ -0,0 +1,41 @@
+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\nimport mod.{something}\n\npub fn main() {\n  something + mod.something\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+pub const something = 10
+
+fn wibble() {
+  something
+}
+
+
+-- app.gleam
+
+import mod.{something}
+
+pub fn main() {
+  something + mod.something
+  ↑                        
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+pub const ten = 10
+
+fn wibble() {
+  ten
+}
+
+
+-- app.gleam
+
+import mod.{ten}
+
+pub fn main() {
+  ten + mod.ten
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_constant_shadowing_module.snap

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+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\nimport gleam/list\n\nconst list = []\n\npub fn main() {\n  list.map(todo, todo)\n}\n    "
+---
+----- BEFORE RENAME
+-- app.gleam
+
+import gleam/list
+
+const list = []
+      ↑
+
+pub fn main() {
+  list.map(todo, todo)
+}
+
+
+
+----- AFTER RENAME
+-- app.gleam
+
+import gleam/list
+
+const empty_list = []
+
+pub fn main() {
+  list.map(todo, todo)
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__rename__rename_function_from_definition.snap

@@ -0,0 +1,45 @@
+---
+source: compiler-core/src/language_server/tests/rename.rs
+expression: "\npub fn something() {\n  something()\n}\n\nfn something_else() {\n  something()\n}\n"
+---
+----- BEFORE RENAME
+-- mod.gleam
+
+import app
+
+fn wibble() {
+  app.something()
+}
+
+
+-- app.gleam
+
+pub fn something() {
+       ↑            
+  something()
+}
+
+fn something_else() {
+  something()
+}
+
+
+----- AFTER RENAME
+-- mod.gleam
+
+import app
+
+fn wibble() {
+  app.some_function()
+}
+
+
+-- app.gleam
+
+pub fn some_function() {
+  some_function()
+}
+
+fn something_else() {
+  some_function()
+}