fix(isolated_declarations): try fix new line issue

crates/oxc_isolated_declarations/tests/mod.rs

@@ -29,7 +29,8 @@ fn transform(path: &Path, source_text: &str) -> String {
         .build(&id_ret.program)
         .source_text;
 
-    let mut snapshot = format!("==================== .D.TS ====================\n\n{code}\n\n");
+    let mut snapshot =
+        format!("```\n==================== .D.TS ====================\n\n{code}\n\n");
     if !id_ret.errors.is_empty() {
         let source = Arc::new(source_text.to_string());
         let error_messages = id_ret
@@ -41,7 +42,7 @@ fn transform(path: &Path, source_text: &str) -> String {
             .join("\n");
 
         snapshot.push_str(&format!(
-            "==================== Errors ====================\n\n{error_messages}\n\n"
+            "==================== Errors ====================\n\n{error_messages}\n\n```"
         ));
     }
 

crates/oxc_isolated_declarations/tests/snapshots/arrow-function-return-type.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/arrow-function-return-type.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare function A(): unknown;
@@ -38,3 +39,6 @@ declare const D: () => string;
     :                    ^
  10 | 
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/as-const.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/as-const.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare const F: {

crates/oxc_isolated_declarations/tests/snapshots/async-function.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/async-function.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare function asyncFunctionGood(): Promise<number>;
@@ -44,3 +45,6 @@ declare class AsyncClassBad {
     :         ^^^^^^
  26 |     return 42;
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/class.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/class.ts
 ---
+```
 ==================== .D.TS ====================
 
 export declare class Foo {

crates/oxc_isolated_declarations/tests/snapshots/declare-global.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/declare-global.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare function MyFunction(): string;

crates/oxc_isolated_declarations/tests/snapshots/eliminate-imports.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/eliminate-imports.ts
 ---
+```
 ==================== .D.TS ====================
 
 import { AExtend, BExtend, Type, CImplements1, CImplements2, CType, ThisType1, ThisType2 } from "mod";

crates/oxc_isolated_declarations/tests/snapshots/empty-export.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/empty-export.ts
 ---
+```
 ==================== .D.TS ====================
 
 type A = string;

crates/oxc_isolated_declarations/tests/snapshots/empty-export2.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/empty-export2.ts
 ---
+```
 ==================== .D.TS ====================
 
 export {};

crates/oxc_isolated_declarations/tests/snapshots/expando-function.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/expando-function.ts
 ---
+```
 ==================== .D.TS ====================
 
 export declare function foo(): void;
@@ -60,3 +61,6 @@ export default qux;
     :   ^^^^^^^^^^
  11 | }
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/function-overloads.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/function-overloads.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare function a(a: number): number;

crates/oxc_isolated_declarations/tests/snapshots/function-parameters.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/function-parameters.ts
 ---
+```
 ==================== .D.TS ====================
 
 export declare function fnDeclGood(p?: T, rParam?: string): void;
@@ -73,3 +74,6 @@ export declare function withUnknown(a: unknown, b: string): void;
     :                         ^^^^^^^^^^^^^^^^^^^^^^^
  27 |   return 2;
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/generator.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/generator.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare function generatorGood(): Generator<number>;
@@ -33,3 +34,6 @@ declare class GeneratorClassBad {
     :    ^^^^^^
  22 |     yield 50;
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/infer-expression.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/infer-expression.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare const n: number;
@@ -41,3 +42,6 @@ declare const unaryE: {};
  18 | const unaryE = {E: -"str"} as const
     :                    ^^^^^^
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/infer-return-type.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/infer-return-type.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare function foo(): number;
@@ -21,3 +22,6 @@ declare function quux(): string;
     :          ^^^
  15 |  if (a) {
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/infer-template-literal.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/infer-template-literal.ts
 ---
+```
 ==================== .D.TS ====================
 
 export declare const CSS_VARS_HELPER = "useCssVars";
@@ -33,3 +34,6 @@ export declare let BAD2: unknown;
  14 | export let BAD2 = `useCssV${v}ars` as const
     :            ^^^^
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/mapped-types.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/mapped-types.ts
 ---
+```
 ==================== .D.TS ====================
 
 import { K } from "foo";

crates/oxc_isolated_declarations/tests/snapshots/module-declaration.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/module-declaration.ts
 ---
+```
 ==================== .D.TS ====================
 
 import "foo";

crates/oxc_isolated_declarations/tests/snapshots/non-exported-binding-elements.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/non-exported-binding-elements.ts
 ---
+```
 ==================== .D.TS ====================
 
 export declare function foo(): number;
@@ -53,3 +54,6 @@ export declare const;
     :         ^
  10 | export { c, d, e }
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/readonly.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/readonly.ts
 ---
+```
 ==================== .D.TS ====================
 
 export declare const EMPTY_OBJ: { readonly [key: string]: any };

crates/oxc_isolated_declarations/tests/snapshots/set-get-accessor.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/set-get-accessor.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare class Cls {
@@ -28,3 +29,6 @@ declare class ClsBad {
     :       ^
  22 |     return;
     `----
+
+
+```

crates/oxc_isolated_declarations/tests/snapshots/signatures.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/signatures.ts
 ---
+```
 ==================== .D.TS ====================
 
 export interface X {

crates/oxc_isolated_declarations/tests/snapshots/strip-internal.snap

@@ -2,6 +2,7 @@
 source: crates/oxc_isolated_declarations/tests/mod.rs
 input_file: crates/oxc_isolated_declarations/tests/fixtures/strip-internal.ts
 ---
+```
 ==================== .D.TS ====================
 
 declare class StripInternalClassFields {}