Merge pull request microsoft#1547 from Microsoft/moveEmitHost

Moved EmitHost to utilities.ts so that it can be edited alone, and to fix resulting declaration file

Author: DanielRosenwasser

src/compiler/emitter.ts

@@ -1461,18 +1461,7 @@ module ts {
  referencePathsOutput,
  }
  }
-
- export interface EmitHost extends ScriptReferenceHost {
- getSourceFiles(): SourceFile[];
- isEmitBlocked(sourceFile?: SourceFile): boolean;
-
- getCommonSourceDirectory(): string;
- getCanonicalFileName(fileName: string): string;
- getNewLine(): string;
-
- writeFile(filename: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void): void;
- }
-
+ 
  export function getDeclarationDiagnostics(host: EmitHost, resolver: EmitResolver, targetSourceFile: SourceFile): Diagnostic[] {
  var diagnostics: Diagnostic[] = [];
  var jsFilePath = getOwnEmitOutputFilePath(targetSourceFile, host, ".js");

src/compiler/utilities.ts

@@ -23,6 +23,17 @@ module ts {
  string(): string;
  }
 
+ export interface EmitHost extends ScriptReferenceHost {
+ getSourceFiles(): SourceFile[];
+ isEmitBlocked(sourceFile?: SourceFile): boolean;
+
+ getCommonSourceDirectory(): string;
+ getCanonicalFileName(fileName: string): string;
+ getNewLine(): string;
+
+ writeFile(filename: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void): void;
+ }
+
  // Pool writers to avoid needing to allocate them for every symbol we write.
  var stringWriters: StringSymbolWriter[] = [];
  export function getSingleLineStringWriter(): StringSymbolWriter {