Merge pull request microsoft#4079 from RyanCavanaugh/fixJsxSourceMaps

Correctly emit source maps when emitting JSX text under --jsx preserve

Author: RyanCavanaugh

src/compiler/emitter.ts

@@ -6479,7 +6479,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, Promi
 
                     case JsxEmit.Preserve:
                     default: // Emit JSX-preserve as default when no --jsx flag is specified
-                        write(getTextOfNode(node, true));
+                        writer.writeLiteral(getTextOfNode(node, true));
                         break;
                 }
             }

src/harness/harness.ts

@@ -1451,7 +1451,7 @@ module Harness {
         }
 
         export function isJSMap(fileName: string) {
-            return stringEndsWith(fileName, '.js.map');
+            return stringEndsWith(fileName, '.js.map') || stringEndsWith(fileName, '.jsx.map');
         }
 
         /** Contains the code and errors of a compilation and some helper methods to check its status. */