minor code quality

Author: basarat

lib/main/lang/programManager.js

@@ -105,7 +105,8 @@ function getOrCreateProject(filePath) {
         return project;
     }
     catch (ex) {
-        if (ex.message === tsconfig.errors.GET_PROJECT_INVALID_PROJECT_FILE) {
+        var err = ex;
+        if (err.message === tsconfig.errors.GET_PROJECT_INVALID_PROJECT_FILE) {
             throw ex;
         }
         else {

lib/main/lang/programManager.ts

@@ -135,14 +135,16 @@ function getOrCreateProject(filePath): tsconfig.TypeScriptProjectFileDetails {
         var project = tsconfig.getProjectSync(filePath);
         return project;
     } catch (ex) {
-        if (ex.message === tsconfig.errors.GET_PROJECT_INVALID_PROJECT_FILE) {
+        var err: Error = ex;
+        if (err.message === tsconfig.errors.GET_PROJECT_INVALID_PROJECT_FILE) {
             throw ex;
         }
         else {
             return tsconfig.createProjectRootSync(filePath);
         }
     }
 }
+}
 
 export function getOrCreateProgram(filePath) {
     filePath = tsconfig.consistentPath(filePath);