Update LSP test snapshots for literal union widening

Literal unions like `1 | 2 | 3` are now widened to their primitive type
(e.g. `int`), so error messages and diagnostics reflect the widened types.
Spurious operator errors on literal unions (Add, Mul) are now resolved.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hellovai

baml_language/crates/baml_lsp2_actions_tests/test_files/semantic_tokens/for_loops.baml

@@ -16,15 +16,7 @@ function ForInLoop() -> int {
 
 //----
 //- diagnostics
-// Error: operator `Add` cannot be applied to `int` and `1 | 2 | 3`
-//     ╭─[ for_loops.baml:12:11 ]
-//     │
-//  12 │     sum = sum + x;
-//     │           ───┬───  
-//     │              ╰───── operator `Add` cannot be applied to `int` and `1 | 2 | 3`
-//     │ 
-//     │ Note: Error code: E0001
-// ────╯
+// <no-diagnostics-expected>
 //
 //- semantic_tokens
 // for_loops.baml:1:1 (keyword) len=8 "function"

baml_language/crates/baml_lsp2_actions_tests/test_files/syntax/headers/basic_if.baml

@@ -17,12 +17,12 @@ function BasicIf() -> string {
 
 //----
 //- diagnostics
-// Error: type mismatch: expected string, got 12 | 13
+// Error: type mismatch: expected string, got int
 //     ╭─[ headers_basic_if.baml:14:5 ]
 //     │
 //  14 │     z
 //     │     ┬  
-//     │     ╰── type mismatch: expected string, got 12 | 13
+//     │     ╰── type mismatch: expected string, got int
 //     │ 
 //     │ Note: Error code: E0001
 // ────╯

baml_language/crates/baml_lsp2_actions_tests/test_files/syntax/headers/complex_headers_test.baml

@@ -105,12 +105,3 @@ function ForLoopWithHeaders() -> int {
 //     │ 
 //     │ Note: Error code: E0001
 // ────╯
-// Error: operator `Mul` cannot be applied to `1 | 2 | 3 | 4 | 5` and `2`
-//     ╭─[ headers_complex_headers_test.baml:54:25 ]
-//     │
-//  54 │         let processed = item * 2;
-//     │                         ────┬───  
-//     │                             ╰───── operator `Mul` cannot be applied to `1 | 2 | 3 | 4 | 5` and `2`
-//     │ 
-//     │ Note: Error code: E0001
-// ────╯

baml_language/crates/baml_lsp2_actions_tests/test_files/syntax/headers/for_loop_mermaid.baml

@@ -20,12 +20,4 @@ function ForLoopWithHeaders() -> int {
 
 //----
 //- diagnostics
-// Error: operator `Mul` cannot be applied to `1 | 2 | 3 | 4 | 5` and `2`
-//    ╭─[ headers_for_loop_mermaid.baml:9:25 ]
-//    │
-//  9 │         let processed = item * 2;
-//    │                         ────┬───  
-//    │                             ╰───── operator `Mul` cannot be applied to `1 | 2 | 3 | 4 | 5` and `2`
-//    │ 
-//    │ Note: Error code: E0001
-// ───╯
+// <no-diagnostics-expected>

baml_language/crates/baml_lsp2_actions_tests/test_files/syntax/headers/for_loops.baml

@@ -27,12 +27,4 @@ function ForLoopWithHeaders() -> int {
 
 //----
 //- diagnostics
-// Error: operator `Mul` cannot be applied to `1 | 2 | 3 | 4 | 5` and `2`
-//    ╭─[ headers_for_loops.baml:9:25 ]
-//    │
-//  9 │         let processed = item * 2;
-//    │                         ────┬───  
-//    │                             ╰───── operator `Mul` cannot be applied to `1 | 2 | 3 | 4 | 5` and `2`
-//    │ 
-//    │ Note: Error code: E0001
-// ───╯
+// <no-diagnostics-expected>

baml_language/crates/baml_lsp2_actions_tests/test_files/syntax/headers/nested_if_statements.baml

@@ -94,12 +94,12 @@ function NestedIfStatements() -> string {
 //     │ 
 //     │ Note: Error code: E0012
 // ────╯
-// Error: type mismatch: expected string, got 2 | 13
+// Error: type mismatch: expected string, got int
 //     ╭─[ headers_nested_if_statements.baml:58:5 ]
 //     │
 //  58 │     e
 //     │     ┬  
-//     │     ╰── type mismatch: expected string, got 2 | 13
+//     │     ╰── type mismatch: expected string, got int
 //     │ 
 //     │ Note: Error code: E0001
 // ────╯

baml_language/crates/baml_lsp2_actions_tests/test_files/syntax/loops/break.baml

@@ -46,12 +46,12 @@ function Nested() -> int {
 
 //----
 //- diagnostics
-// Error: type mismatch: expected 1 | 2 | 3, got string
+// Error: type mismatch: expected int, got string
 //    ╭─[ loops_break.baml:6:14 ]
 //    │
 //  6 │     res.push("hi");
 //    │              ──┬─  
-//    │                ╰─── type mismatch: expected 1 | 2 | 3, got string
+//    │                ╰─── type mismatch: expected int, got string
 //    │ 
 //    │ Note: Error code: E0001
 // ───╯