Refactoring main-compiler (tsc) to use short-hand

Author: Yui T

src/compiler/tsc.ts

@@ -192,12 +192,12 @@ module ts {
  }
 
  return {
- getSourceFile: getSourceFile,
+ getSourceFile,
  getDefaultLibFilename: () => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), "lib.d.ts"),
- writeFile: writeFile,
+ writeFile,
  getCurrentDirectory: () => currentDirectory || (currentDirectory = sys.getCurrentDirectory()),
  useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
- getCanonicalFileName: getCanonicalFileName,
+ getCanonicalFileName,
  getNewLine: () => sys.newLine
  };
  }
@@ -367,7 +367,7 @@ module ts {
  }
  else {
  var emitStart = new Date().getTime();
- var emitOutput = checker.emitFiles();
+ var emitOutput = checker.invokeEmitter();
  var emitErrors = emitOutput.errors;
  exitStatus = emitOutput.emitResultStatus;
  var reportStart = new Date().getTime();
@@ -394,7 +394,7 @@ module ts {
  reportTimeStatistic("Total time", reportStart - parseStart);
  }
 
- return { program: program, exitStatus: exitStatus }
+ return { program, exitStatus };
  }
 
  function printVersion() {