Fixed baselines that were comitted using the old format (#54791)

Author: Andarist

tests/baselines/reference/jsdocThisType.symbols

@@ -1,3 +1,5 @@
+//// [tests/cases/conformance/jsdoc/jsdocThisType.ts] ////
+
 === /types.d.ts ===
 export interface Foo {
 >Foo : Symbol(Foo, Decl(types.d.ts, 0, 0))

tests/baselines/reference/jsdocThisType.types

@@ -1,3 +1,5 @@
+//// [tests/cases/conformance/jsdoc/jsdocThisType.ts] ////
+
 === /types.d.ts ===
 export interface Foo {
     foo: () => void;