Keep enum referenes to ts.SyntaxKind

Since different TypeScript versions might have different indices for
the syntax kinds.

Author: ivogabe

definitions/typescript.d.ts

@@ -21,7 +21,7 @@ declare module "typescript" {
         pos: number;
         end: number;
     }
-    const enum SyntaxKind {
+    enum SyntaxKind {
         Unknown = 0,
         EndOfFileToken = 1,
         SingleLineCommentTrivia = 2,

lib/project.ts

@@ -322,14 +322,14 @@ export class Project {
 		var references = file.ts.referencedFiles.map(item => path.join(path.dirname(Project.getFileName(file.ts)), Project.getFileName(item)));
 
 		this.typescript.forEachChild(file.ts, (node) => {
-			if (node.kind === this.typescript.SyntaxKind.ImportDeclaration) {
+			if (node.kind === (<any> this.typescript.SyntaxKind).ImportDeclaration) {
 				var importNode = <ts.ImportDeclaration> node;
 
-				if (importNode.moduleReference === undefined || importNode.moduleReference.kind !== this.typescript.SyntaxKind.ExternalModuleReference) {
+				if (importNode.moduleReference === undefined || importNode.moduleReference.kind !== (<any> this.typescript.SyntaxKind).ExternalModuleReference) {
 					return;
 				}
 				var reference = <ts.ExternalModuleReference> importNode.moduleReference;
-				if (reference.expression === undefined || reference.expression.kind !== this.typescript.SyntaxKind.StringLiteral) {
+				if (reference.expression === undefined || reference.expression.kind !== (<any> this.typescript.SyntaxKind).StringLiteral) {
 					return;
 				}
 				if (typeof (<ts.StringLiteralExpression> reference).text !== 'string') {

release/project.js

@@ -203,13 +203,13 @@ var Project = (function () {
         var _this = this;
         var references = file.ts.referencedFiles.map(function (item) { return path.join(path.dirname(Project.getFileName(file.ts)), Project.getFileName(item)); });
         this.typescript.forEachChild(file.ts, function (node) {
-            if (node.kind === 191 /* ImportDeclaration */) {
+            if (node.kind === _this.typescript.SyntaxKind.ImportDeclaration) {
                 var importNode = node;
-                if (importNode.moduleReference === undefined || importNode.moduleReference.kind !== 193 /* ExternalModuleReference */) {
+                if (importNode.moduleReference === undefined || importNode.moduleReference.kind !== _this.typescript.SyntaxKind.ExternalModuleReference) {
                     return;
                 }
                 var reference = importNode.moduleReference;
-                if (reference.expression === undefined || reference.expression.kind !== 7 /* StringLiteral */) {
+                if (reference.expression === undefined || reference.expression.kind !== _this.typescript.SyntaxKind.StringLiteral) {
                     return;
                 }
                 if (typeof reference.text !== 'string') {