Merge remote-tracking branch 'upstream/master'

* upstream/master: (58 commits)
  Variadic tuple types (microsoft#39094)
  chore: resolve suggestions
  Expand auto-import to all package.json dependencies (microsoft#38923)
  inline local functions
  Update bigint declaration file (microsoft#38526)
  Update user baselines (microsoft#39077)
  LEGO: check in for master to temporary branch.
  Add missing index.ts files to user projects (microsoft#39163)
  Add reason for a disabled code action (microsoft#37871)
  Minor fix for assertion predicates (microsoft#38710)
  Update LKG (microsoft#39173)
  Reparse top level 'await' in modules (microsoft#39084)
  change
  chore: more change
  chore: resolve review
  chore: save space
  fix: lint error
  test: add test for it
  chore: make isJsxAttr required
  chore: revert change in checker
  ...

# Conflicts:
#	src/compiler/binder.ts
#	src/compiler/checker.ts
#	src/compiler/parser.ts
#	src/compiler/types.ts

Author: cangSDARM

.vscode/launch.template.json

@@ -43,7 +43,7 @@
       },
       "sourceMaps": true,
       "smartStep": true,
-      "preLaunchTask": "tests",
+      "preLaunchTask": "gulp: tests",
       "console": "integratedTerminal",
       "outFiles": [
         "${workspaceRoot}/built/local/run.js"

.vscode/tasks.json

@@ -4,31 +4,42 @@
     "version": "2.0.0",
     "tasks": [
         {
-            "type": "shell",
-            "identifier": "local",
+            "type": "gulp",
             "label": "gulp: local",
-            "command": "gulp",
-            "args": ["local"],
-            "group": { "kind": "build", "isDefault": true },
-            "problemMatcher": ["$gulp-tsc"]
+            "task": "local",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": [
+                "$tsc"
+            ]
         },
         {
-            "type": "shell",
-            "identifier": "tsc",
+            "type": "gulp",
             "label": "gulp: tsc",
-            "command": "gulp",
-            "args": ["tsc"],
+            "task": "tsc",
             "group": "build",
-            "problemMatcher": ["$gulp-tsc"]
+            "problemMatcher": [
+                "$tsc"
+            ]
         },
         {
-            "type": "shell",
-            "identifier": "tests",
+            "type": "gulp",
             "label": "gulp: tests",
-            "command": "gulp",
-            "args": ["tests"],
+            "task": "tests",
             "group": "build",
-            "problemMatcher": ["$gulp-tsc"]
+            "problemMatcher": [
+                "$tsc"
+            ]
+        },
+        {
+            "type": "gulp",
+            "task": "services",
+            "label": "gulp: services",
+            "problemMatcher": [
+                "$tsc"
+            ],
         }
     ]
 }

README.md

@@ -2,7 +2,7 @@
 # TypeScript
 
 [![Build Status](https://travis-ci.org/microsoft/TypeScript.svg?branch=master)](https://travis-ci.org/microsoft/TypeScript)
-[![VSTS Build Status](https://dev.azure.com/typescript/TypeScript/_apis/build/status/Typescript/node10)](https://dev.azure.com/typescript/TypeScript/_build/latest?definitionId=4&view=logs)
+[![Devops Build Status](https://dev.azure.com/typescript/TypeScript/_apis/build/status/Typescript/node10)](https://dev.azure.com/typescript/TypeScript/_build?definitionId=7)
 [![npm version](https://badge.fury.io/js/typescript.svg)](https://www.npmjs.com/package/typescript)
 [![Downloads](https://img.shields.io/npm/dm/typescript.svg)](https://www.npmjs.com/package/typescript)