More test fixes (#6)

* Update interactivechecker and structure tests

* Try to fix some legacy tests

* More test fixes

Author: cartermp

vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.Completion.fs

@@ -4923,7 +4923,7 @@ let x = query { for bbbb in abbbbc(*D0*) do
         let code = [
 """
 let someCall(x) = null
-let xe = someCall(System.IO.StringReader()
+let xe = someCall(System.IO.StringReader().
 """
         ]
         let (_, _, file) = this.CreateSingleFileProject(code)