Add tests to language part 1 (#2086)

test/powershell/Language/Scripting/TestsOnWinFullOnly.ps1

@@ -0,0 +1,30 @@
+function Run-TestOnWinFull
+{
+    [CmdletBinding()]
+    param( [string]$name )
+
+    switch ($name) 
+    {
+        "ActionPreference:ErrorAction=SuspendOnWorkflow" {
+            workflow TestErrorActionSuspend { "Hello" }
+    
+            $r = TestErrorActionSuspend -ErrorAction Suspend
+    
+            $r | Should Be Hello
+            break;   }
+
+        "ForeachParallel:ASTOfParallelForeachOnWorkflow" {
+            Import-Module PSWorkflow
+            $errors = @()
+            $ast = [System.Management.Automation.Language.Parser]::ParseInput(
+        'workflow foo { foreach -parallel ($foo in $bar) {} }', [ref] $null, [ref] $errors)
+            $errors.Count | Should Be 0
+            $ast.EndBlock.Statements[0].Body.EndBlock.Statements[0].Flags | Should Be 'Parallel'
+            break;
+            }
+        default {
+            #do nothing
+        }
+         
+    }
+}