ci(typescript): add typescript_next build

Install typescript@next before build.js and test.typings.
Restore the regular version before travis caches node_modules/.

Fixes #6368

.travis.yml

@@ -12,6 +12,10 @@ cache:
     - node_modules
     - $HOME/.pub-cache
 
+before_cache:
+  # Undo the pollution of the typescript_next build
+  - npm install typescript
+
 env:
   global:
   - KARMA_BROWSERS=DartiumWithWebPlatform
@@ -46,6 +50,7 @@ env:
     - MODE=js DART_CHANNEL=dev DART_VERSION=$DART_DEV_VERSION
     - MODE=router DART_CHANNEL=dev DART_VERSION=$DART_DEV_VERSION
     - MODE=build_only DART_CHANNEL=stable DART_VERSION=$DART_STABLE_VERSION
+    - MODE=typescript_next DART_CHANNEL=stable DART_VERSION=$DART_STABLE_VERSION
     - MODE=lint DART_CHANNEL=dev DART_VERSION=$DART_DEV_VERSION
     - MODE=payload DART_CHANNEL=stable DART_VERSION=$DART_STABLE_VERSION
 
@@ -55,6 +60,8 @@ matrix:
   - env: "MODE=browserstack_optional DART_CHANNEL=dev DART_VERSION=$DART_DEV_VERSION"
   # TODO(alxhub): remove when dartdoc #1039 is in dev channel
   - env: "MODE=dart DART_CHANNEL=dev DART_VERSION=$DART_DEV_VERSION"
+  # Tracked in https://github.com/angular/angular/issues/7050
+  - env: "MODE=typescript_next DART_CHANNEL=stable DART_VERSION=$DART_STABLE_VERSION"
 
 addons:
   firefox: "38.0"

modules/playground/src/web_workers/images/services/bitmap.ts

@@ -63,7 +63,7 @@ export class BitmapService {
     return imageData;
   }
 
-  private _swap(data: any[], index1: number, index2: number) {
+  private _swap(data: Uint8Array | number[], index1: number, index2: number) {
     var temp = data[index1];
     data[index1] = data[index2];
     data[index2] = temp;

scripts/ci/build_and_test.sh

@@ -19,6 +19,11 @@ elif [ "$MODE" = "lint" ]; then
 elif [ "$MODE" = "build_only" ]; then
   ${SCRIPT_DIR}/build_js.sh
   ${SCRIPT_DIR}/build_dart.sh
+elif [ "$MODE" = "typescript_next" ]; then
+   # Ignore complaints about unsatisfied peer deps
+   npm install typescript@next || true
+   ${SCRIPT_DIR}/build_js.sh
+   ./node_modules/.bin/gulp test.typings
 elif [ "$MODE" = "payload" ]; then
   source ${SCRIPT_DIR}/env_dart.sh
   ./node_modules/.bin/gulp test.payload.dart/ci

scripts/ci/build_dart_ddc.sh

@@ -12,7 +12,7 @@ cd $SCRIPT_DIR/../..
 
 # Variables
 DDC_TOTAL_WARNING_CAP="1000"
-DDC_TOTAL_ERROR_CAP="6"
+DDC_TOTAL_ERROR_CAP="11"
 DDC_DIR=`pwd`/tmp/dev_compiler
 DDC_VERSION="0.1.14"