Use LF-only in our own files

Author: RyanCavanaugh

src/harness/fourslashImpl.ts

@@ -689,7 +689,7 @@ export class TestState {
             throw new Error("Expected exactly one output from emit of " + this.activeFile.fileName);
         }
 
-        const evaluation = new Function(`${emit.outputFiles[0].text};\r\nreturn (${expr});`)(); // eslint-disable-line no-new-func
+        const evaluation = new Function(`${emit.outputFiles[0].text};\nreturn (${expr});`)(); // eslint-disable-line no-new-func
         if (evaluation !== value) {
             this.raiseError(`Expected evaluation of expression "${expr}" to equal "${value}", but got "${evaluation}"`);
         }

src/harness/harnessIO.ts

@@ -46,8 +46,7 @@ export function setHarnessIO(io: IO) {
 }
 
 // harness always uses one kind of new line
-// But note that `parseTestData` in `fourslash.ts` uses "\n"
-export const harnessNewLine = "\r\n";
+export const harnessNewLine = "\n";
 
 // Root for file paths that are stored in a virtual file system
 export const virtualFileSystemRoot = "/";

src/testRunner/unittests/services/languageService.ts

@@ -82,7 +82,7 @@ export function Component(x: Config): any;`
                 diagnostics: ts.emptyArray,
                 outputFiles: [{
                     name: "foo.d.ts",
-                    text: "export {};\r\n",
+                    text: "export {};\n",
                     writeByteOrderMark: false
                 }],
             }