fix(lint): avoid ANSI chars with JSON emitter

crates/forge/tests/cli/lint.rs

@@ -530,6 +530,47 @@ Compiler run successful!
 "#]]);
 });
 
+// <https://github.com/foundry-rs/foundry/issues/11460>
+forgetest!(lint_json_output_no_ansi_escape_codes, |prj, cmd| {
+    prj.wipe_contracts();
+    prj.add_source(
+        "UnwrappedModifierTest",
+        r#"
+        // SPDX-License-Identifier: MIT
+        pragma solidity ^0.8.0;
+
+        contract UnwrappedModifierTest {
+            mapping(address => bool) isOwner;
+
+            modifier onlyOwner() {
+                require(isOwner[msg.sender], "Not owner");
+                require(msg.sender != address(0), "Zero address");
+                _;
+            }
+
+            function doSomething() public onlyOwner {}
+        }
+            "#,
+    )
+    .unwrap();
+
+    prj.update_config(|config| {
+        config.lint = LinterConfig {
+            severity: vec![LintSeverity::CodeSize],
+            exclude_lints: vec![],
+            ignore: vec![],
+            lint_on_build: true,
+            ..Default::default()
+        };
+    });
+
+    // should produce clean JSON without ANSI escape sequences (for the url nor the snippets)
+    cmd.arg("lint").arg("--json").assert_success().stderr_eq(str![[r#"
+{"$message_type":"diag","message":"wrap modifier logic to reduce code size","code":{"code":"unwrapped-modifier-logic","explanation":null},"level":"note","spans":[{"file_name":"src/UnwrappedModifierTest.sol","byte_start":183,"byte_end":192,"line_start":8,"line_end":8,"column_start":22,"column_end":31,"is_primary":true,"text":[{"text":"            modifier onlyOwner() {","highlight_start":22,"highlight_end":31}],"label":null}],"children":[{"message":"wrap modifier logic to reduce code size/n/n- modifier onlyOwner() {/n-     require(isOwner[msg.sender], /"Not owner/");/n-     require(msg.sender != address(0), /"Zero address/");/n-     _;/n- }/n+ modifier onlyOwner() {/n+     _onlyOwner();/n+     _;/n+ }/n+ /n+ function _onlyOwner() internal {/n+     require(isOwner[msg.sender], /"Not owner/");/n+     require(msg.sender != address(0), /"Zero address/");/n+ }/n/n","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"https://book.getfoundry.sh/reference/forge/forge-lint#unwrapped-modifier-logic","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"note[unwrapped-modifier-logic]: wrap modifier logic to reduce code size/n [FILE]:8:22/n  |/n8 |             modifier onlyOwner() {/n  |                      ---------/n  |/n  = note: wrap modifier logic to reduce code size/n          /n          - modifier onlyOwner() {/n          -     require(isOwner[msg.sender], /"Not owner/");/n          -     require(msg.sender != address(0), /"Zero address/");/n          -     _;/n          - }/n          + modifier onlyOwner() {/n          +     _onlyOwner();/n          +     _;/n          + }/n          + /n          + function _onlyOwner() internal {/n          +     require(isOwner[msg.sender], /"Not owner/");/n          +     require(msg.sender != address(0), /"Zero address/");/n          + }/n          /n  = help: https://book.getfoundry.sh/reference/forge/forge-lint#unwrapped-modifier-logic/n/n"}
+
+"#]]);
+});
+
 // ------------------------------------------------------------------------------------------------
 
 #[tokio::test]