Add Linux, Node8, and Node10 to test matrix (#1445)

- Test both Node8 and Node10 on Windows and Linux
- Only test Node8 on MacOS, since the ASP.NET Core 2.1.X templates are incompatible with Node10 on macOS
  - https://github.com/aspnet/Templating/issues/608
- Move Windows build to "Hosted VS2017" pool which has more agents
  - We would rather use the "Hosted" pool, but "npm restore" currently fails on agents in this pool
- Remove "Preview" from Mac pool name

.azure/pipelines/e2e-tests.yml

@@ -2,22 +2,38 @@ trigger: none
 phases:
 - phase: Host_Windows
   queue:
-    name: DotNetCore-Windows
+    name: Hosted VS2017
-    parallel: 4
+    parallel: 8
     matrix:
-      Portable:
+      Portable_Node8:
         Test.RuntimeIdentifier: none
-      SelfContainedWindows:
+        Node.Version: 8.x
+      Portable_Node10:
+        Test.RuntimeIdentifier: none
+        Node.Version: 10.x
+      SelfContainedWindows_Node8:
         Test.RuntimeIdentifier: win-x64
-      SelfContainedLinux:
+        Node.Version: 8.x
+      SelfContainedWindows_Node10:
+        Test.RuntimeIdentifier: win-x64
+        Node.Version: 10.x
+      SelfContainedLinux_Node8:
         Test.RuntimeIdentifier: linux-x64
-      SelfContainedMacOs:
+        Node.Version: 8.x
+      SelfContainedLinux_Node10:
+        Test.RuntimeIdentifier: linux-x64
+        Node.Version: 10.x
+      SelfContainedMacOs_Node8:
         Test.RuntimeIdentifier: osx-x64
+        Node.Version: 8.x
+      SelfContainedMacOs_Node10:
+        Test.RuntimeIdentifier: osx-x64
+        Node.Version: 10.x
   steps:
   - task: NodeTool@0
-    displayName: Install Node 10.x
+    displayName: Install Node $(Node.Version)
     inputs:
-      versionSpec: 10.x
+      versionSpec: $(Node.Version)
   - powershell: |
       test/Cli.FunctionalTests/run-tests.ps1 -ci -ProdConManifestUrl $env:PRODCONMANIFESTURL -TestRuntimeIdentifier $(Test.RuntimeIdentifier) -AdditionalRestoreSources $env:ADDITIONALRESTORESOURCES
     condition: ne(variables['PB_SkipTests'], 'true')
@@ -30,22 +46,72 @@ phases:
       testResultsFiles: 'artifacts/logs/**/*.trx'
 - phase: Host_macOS
   queue:
-    name: Hosted macOS Preview
+    name: Hosted macOS
     parallel: 4
+    # The ASP.NET Core 2.1.X templates are incompatible with Node10 on macOS
+    # https://github.com/aspnet/Templating/issues/608
     matrix:
-      Portable:
+      Portable_Node8:
         Test.RuntimeIdentifier: none
-      SelfContainedWindows:
+        Node.Version: 8.x
+      SelfContainedWindows_Node8:
         Test.RuntimeIdentifier: win-x64
-      SelfContainedLinux:
+        Node.Version: 8.x
+      SelfContainedLinux_Node8:
         Test.RuntimeIdentifier: linux-x64
-      SelfContainedMacOs:
+        Node.Version: 8.x
+      SelfContainedMacOs_Node8:
         Test.RuntimeIdentifier: osx-x64
+        Node.Version: 8.x
   steps:
   - task: NodeTool@0
-    displayName: Install Node 8.x
+    displayName: Install Node $(Node.Version)
     inputs:
-      versionSpec: 8.x
+      versionSpec: $(Node.Version)
+  - powershell: |
+      test/Cli.FunctionalTests/run-tests.ps1 -ci -ProdConManifestUrl $env:PRODCONMANIFESTURL -TestRuntimeIdentifier $(Test.RuntimeIdentifier) -AdditionalRestoreSources $env:ADDITIONALRESTORESOURCES
+    condition: ne(variables['PB_SkipTests'], 'true')
+    displayName: Run E2E tests
+  - task: PublishTestResults@2
+    displayName: Publish test results
+    condition: always()
+    inputs:
+      testRunner: vstest
+      testResultsFiles: 'artifacts/logs/**/*.trx'
+- phase: Host_Linux
+  queue:
+    name: Hosted Linux Preview
+    parallel: 8
+    matrix:
+      Portable_Node8:
+        Test.RuntimeIdentifier: none
+        Node.Version: 8.x
+      Portable_Node10:
+        Test.RuntimeIdentifier: none
+        Node.Version: 10.x
+      SelfContainedWindows_Node8:
+        Test.RuntimeIdentifier: win-x64
+        Node.Version: 8.x
+      SelfContainedWindows_Node10:
+        Test.RuntimeIdentifier: win-x64
+        Node.Version: 10.x
+      SelfContainedLinux_Node8:
+        Test.RuntimeIdentifier: linux-x64
+        Node.Version: 8.x
+      SelfContainedLinux_Node10:
+        Test.RuntimeIdentifier: linux-x64
+        Node.Version: 10.x
+      SelfContainedMacOs_Node8:
+        Test.RuntimeIdentifier: osx-x64
+        Node.Version: 8.x
+      SelfContainedMacOs_Node10:
+        Test.RuntimeIdentifier: osx-x64
+        Node.Version: 10.x
+  steps:
+  - task: NodeTool@0
+    displayName: Install Node $(Node.Version)
+    inputs:
+      versionSpec: $(Node.Version)
   - powershell: |
       test/Cli.FunctionalTests/run-tests.ps1 -ci -ProdConManifestUrl $env:PRODCONMANIFESTURL -TestRuntimeIdentifier $(Test.RuntimeIdentifier) -AdditionalRestoreSources $env:ADDITIONALRESTORESOURCES
     condition: ne(variables['PB_SkipTests'], 'true')