Modify build script's Build task to not build solution

This change modifies the build script so that it doesn't build the entire
solution file.  This is needed because the test projects depend on net452
now due to xUnit requirements; building the solution with both net451 and
net452 was causing compilation errors, so it was better to just take that
out and let "dotnet test" build the test projects on demand.

Author: daviwil

.vscode/tasks.json

@@ -28,12 +28,7 @@
             "taskName": "Build",
             "suppressTaskName": true,
             "isBuildCommand": true,
-            "args": [ "Invoke-Build BuildHost" ]
-        },
-        {
-            "taskName": "Full Build",
-            "suppressTaskName": true,
-            "args": [ "Invoke-Build" ]
+            "args": [ "Invoke-Build Build" ]
         },
         {
             "taskName": "Test",

PowerShellEditorServices.build.ps1

@@ -18,9 +18,8 @@ if ($PSVersionTable.PSEdition -ne "Core") {
     Add-Type -Assembly System.IO.Compression.FileSystem
 }
 
-task SetupDotNet -Before Restore, Clean, Build, BuildHost, Test, TestPowerShellApi, PackageNuGet {
+task SetupDotNet -Before Restore, Clean, Build, Test, TestPowerShellApi, PackageNuGet {
 
-    # Fetch the SDK version from global.json
     $requiredSdkVersion = "1.0.0-rc4-004771"
 
     $needsInstall = $true
@@ -92,7 +91,7 @@ function NeedsRestore($rootPath) {
     return ($projectAssets -eq $null) -or ((Get-ChildItem $rootPath).Length -gt $projectAssets.Length)
 }
 
-task Restore -If { "Restore" -in $BuildTask -or (NeedsRestore(".\src")) -or (NeedsRestore(".\test")) } -Before Clean, Build, BuildHost, Test {
+task Restore -If { "Restore" -in $BuildTask -or (NeedsRestore(".\src")) -or (NeedsRestore(".\test")) } -Before Clean, Build, Test {
     exec { & $script:dotnetExe restore }
 }
 
@@ -136,12 +135,8 @@ task TestPowerShellApi -If { !$script:IsUnix } {
     exec { & $script:dotnetExe restore .\src\PowerShellEditorServices\PowerShellEditorServices.csproj }
 }
 
-task BuildHost {
-    exec { & $script:dotnetExe build -c $Configuration .\src\PowerShellEditorServices.Host\PowerShellEditorServices.Host.csproj $script:TargetFrameworksParam }
-}
-
 task Build {
-    exec { & $script:dotnetExe build -c $Configuration .\PowerShellEditorServices.sln $script:TargetFrameworksParam }
+    exec { & $script:dotnetExe build -c $Configuration .\src\PowerShellEditorServices.Host\PowerShellEditorServices.Host.csproj $script:TargetFrameworksParam }
 }
 
 function UploadTestLogs {
@@ -177,7 +172,7 @@ task CITest (job Test -Safe), {
     }
 }
 
-task LayoutModule -After Build, BuildHost {
+task LayoutModule -After Build {
     New-Item -Force $PSScriptRoot\module\PowerShellEditorServices\bin\ -Type Directory | Out-Null
     New-Item -Force $PSScriptRoot\module\PowerShellEditorServices\bin\Desktop -Type Directory | Out-Null
     New-Item -Force $PSScriptRoot\module\PowerShellEditorServices\bin\Core -Type Directory | Out-Null