Add autoload for TestLanguage.psm1 TestHelpers.psm1 (#3456)

* Add autoload for TestHelpers.psm1

Test.Helpers.psm1 was renamed to TestHelpers.psm1

* Resolve conflit and rebase Add autoload for TestLanguage.psm1

* Remove unneeded comments from PSD1 files

* Rename test modules

Remove approved verbs (Get-Verb) from module names.

* Enhance ShouldBeErrorId to output exception into pipeline for later analysis

* Remove unneeded comments

* Resolve merge conflict

test/powershell/Language/Scripting/Debugging/Debugging.Tests.ps1

@@ -12,10 +12,6 @@ $script2 = @'
 "line 3"
 '@
 
-$testroot = resolve-path (join-path $psscriptroot ../../..)
-$common = join-path $testroot Common
-$helperModule = join-path $common Test.Helpers.psm1
-
 Describe "Breakpoints when set should be hit" -tag "CI" {
     BeforeAll {
         $path = setup -pass -f TestScript_1.ps1 -content $script1