refactor: update angular to support TypeScript 2.4

Detailed updates:
- rxjs@5.0.x
- tsickle@0.24.x
- typescript@2.4.x
- @bazel/typescript@0.10.0
- protractor@5.1.x
- selenium-webdriver@3.0.x

BREAKING CHANGE:
- the Angular compiler now requires TypeScript 2.4.x.

packages/tsc-wrapped/test/main_spec.ts

@@ -75,7 +75,7 @@ describe('tsc-wrapped', () => {
           // No helpers since decorators were lowered
           expect(out).not.toContain('__decorate');
           // Expand `export *` and fix index import
-          expect(out).toContain(`export { A, B } from './dep'`);
+          expect(out).toContain(`export { A, B } from "./dep"`);
           // Annotated for Closure compiler
           expect(out).toContain('* @param {?} x');
           // Comments should stay multi-line
@@ -112,7 +112,7 @@ describe('tsc-wrapped', () => {
         .then(() => {
           const out = readOut('js');
           // Expand `export *` and fix index import
-          expect(out).toContain(`export { A, B } from './dep'`);
+          expect(out).toContain(`export { A, B } from "./dep"`);
           // Annotated for Closure compiler
           expect(out).toContain('* @param {?} x');
           done();
@@ -327,7 +327,7 @@ describe('tsc-wrapped', () => {
     main(basePath, {basePath})
         .then(() => {
           const out = readOut('js.map');
-          expect(out).toContain('"sources":["other_test.ts","../test.ts"]');
+          expect(out).toContain('"sources":["other_test.ts"]');
           done();
         })
         .catch(e => done.fail(e));
@@ -361,7 +361,7 @@ describe('tsc-wrapped', () => {
     main(basePath, {basePath})
         .then(() => {
           const out = readOut('js.map');
-          expect(out).toContain('"sources":["other_test.ts","../test.ts"]');
+          expect(out).toContain('"sources":["other_test.ts"]');
           done();
         })
         .catch(e => done.fail(e));
@@ -387,7 +387,7 @@ describe('tsc-wrapped', () => {
     main(basePath, {basePath})
         .then(() => {
           const fileOutput = readOut('js');
-          expect(fileOutput).toContain(`export { A, B } from './dep'`);
+          expect(fileOutput).toContain(`export { A, B } from "./dep"`);
           done();
         })
         .catch(e => done.fail(e));

packages/tsc-wrapped/test/symbols_spec.ts

@@ -97,7 +97,7 @@ describe('Symbols', () => {
       switch (node.kind) {
         case ts.SyntaxKind.VariableStatement:
         case ts.SyntaxKind.VariableDeclarationList:
-          return ts.forEachChild(node, visit);
+          return !!ts.forEachChild(node, visit);
         case ts.SyntaxKind.VariableDeclaration:
           const variableDeclaration = <ts.VariableDeclaration>node;
           const nameNode = <ts.Identifier>variableDeclaration.name;

packages/tsc-wrapped/test/typescript.mocks.ts

@@ -34,6 +34,8 @@ export class Host implements ts.LanguageServiceHost {
     if (content) return ts.ScriptSnapshot.fromString(content);
   }
 
+  fileExists(fileName: string): boolean { return this.getFileContent(fileName) != null; }
+
   getCurrentDirectory(): string { return '/'; }
 
   getDefaultLibFileName(options: ts.CompilerOptions): string { return 'lib.d.ts'; }
@@ -91,8 +93,10 @@ export class MockNode implements ts.Node {
   getText(sourceFile?: ts.SourceFile): string { return ''; }
   getFirstToken(sourceFile?: ts.SourceFile): ts.Node { return null as any as ts.Node; }
   getLastToken(sourceFile?: ts.SourceFile): ts.Node { return null as any as ts.Node; }
-  forEachChild<T>(cbNode: (node: ts.Node) => T, cbNodeArray?: (nodes: ts.Node[]) => T): T {
-    return null as any as T;
+  forEachChild<T>(
+      cbNode: (node: ts.Node) => T | undefined,
+      cbNodeArray?: (nodes: ts.NodeArray<ts.Node>) => T | undefined): T|undefined {
+    return undefined;
   }
 }
 
@@ -105,6 +109,7 @@ export class MockIdentifier extends MockNode implements ts.Identifier {
   public _incrementExpressionBrand: any;
   public _unaryExpressionBrand: any;
   public _expressionBrand: any;
+  public _updateExpressionBrand: any;
   // tslint:enable
 
   constructor(
@@ -149,9 +154,11 @@ export class MockSymbol implements ts.Symbol {
 export function expectNoDiagnostics(diagnostics: ts.Diagnostic[]) {
   for (const diagnostic of diagnostics) {
     const message = ts.flattenDiagnosticMessageText(diagnostic.messageText, '\n');
-    const {line, character} = diagnostic.file.getLineAndCharacterOfPosition(diagnostic.start);
-    // tslint:disable-next-line:no-console
-    console.log(`${diagnostic.file.fileName} (${line + 1},${character + 1}): ${message}`);
+    if (diagnostic.file && diagnostic.start) {
+      const {line, character} = diagnostic.file.getLineAndCharacterOfPosition(diagnostic.start);
+      // tslint:disable-next-line:no-console
+      console.log(`${diagnostic.file.fileName} (${line + 1},${character + 1}): ${message}`);
+    }
   }
   expect(diagnostics.length).toBe(0);
 }
@@ -164,14 +171,8 @@ export function expectValidSources(service: ts.LanguageService, program: ts.Prog
   }
 }
 
-export function allChildren<T>(node: ts.Node, cb: (node: ts.Node) => T): T {
-  return ts.forEachChild(node, child => {
-    const result = cb(node);
-    if (result) {
-      return result;
-    }
-    return allChildren(child, cb);
-  });
+export function allChildren<T>(node: ts.Node, cb: (node: ts.Node) => T | undefined): T|undefined {
+  return ts.forEachChild(node, child => cb(node) || allChildren(child, cb));
 }
 
 export function findClass(sourceFile: ts.SourceFile, name: string): ts.ClassDeclaration|undefined {