[lsp] moved filesystemscanner to xtext.utils and LSPExtensions to lsapi project

plugins/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/LSPExtensions.xtend

@@ -1,32 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2016 TypeFox GmbH (http://www.typefox.io) and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *******************************************************************************/
-package org.eclipse.xtext.ide.server
-
-import io.typefox.lsapi.PositionImpl
-import io.typefox.lsapi.RangeImpl
-
-/**
- * @author Sven Efftinge - Initial contribution and API
- */
-class LSPExtensions {
-    
-    
-    static def PositionImpl newPosition(int line, int character) {
-        new PositionImpl => [
-            it.line = line
-            it.character = character
-        ]
-    }
-    
-    static def RangeImpl newRange(PositionImpl start, PositionImpl end) {
-        new RangeImpl => [
-            it.start = start
-            it.end = end
-        ]
-    }
-}

plugins/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/LanguageServerImpl.xtend

@@ -33,7 +33,6 @@ import io.typefox.lsapi.InitializeResultImpl
 import io.typefox.lsapi.LanguageServer
 import io.typefox.lsapi.MessageParams
 import io.typefox.lsapi.NotificationCallback
-import io.typefox.lsapi.PositionImpl
 import io.typefox.lsapi.PublishDiagnosticsParams
 import io.typefox.lsapi.PublishDiagnosticsParamsImpl
 import io.typefox.lsapi.RangeImpl
@@ -43,7 +42,6 @@ import io.typefox.lsapi.ServerCapabilitiesImpl
 import io.typefox.lsapi.ShowMessageRequestParams
 import io.typefox.lsapi.TextDocumentPositionParams
 import io.typefox.lsapi.TextDocumentService
-import io.typefox.lsapi.TextEditImpl
 import io.typefox.lsapi.WindowService
 import io.typefox.lsapi.WorkspaceService
 import io.typefox.lsapi.WorkspaceSymbolParams
@@ -52,6 +50,8 @@ import org.eclipse.emf.common.util.URI
 import org.eclipse.xtend.lib.annotations.Accessors
 import org.eclipse.xtext.validation.Issue
 
+import static io.typefox.lsapi.util.LsapiFactories.*
+
 /**
  * 
  * @author Sven Efftinge - Initial contribution and API
@@ -101,10 +101,7 @@ import org.eclipse.xtext.validation.Issue
     
     override didChange(DidChangeTextDocumentParams params) {
         workspaceManager.didChange(params.textDocument.uri.toUri, params.textDocument.version, params.contentChanges.map [ event |
-            val edit = new TextEditImpl 
-            edit.range = event.range as RangeImpl
-            edit.newText = event.text
-            return edit
+            newTextEdit(event.range as RangeImpl, event.text)
         ])
     }
     
@@ -166,16 +163,10 @@ import org.eclipse.xtext.validation.Issue
                 default : Diagnostic.SEVERITY_HINT
             }
             message = issue.message
-            range = new RangeImpl => [
-                start = new PositionImpl => [
-                    line = issue.lineNumber
-                    character = issue.column
-                ]
-                end = new PositionImpl => [
-                    line = issue.lineNumber
-                    character = issue.column + issue.length
-                ]
-            ]
+            range = newRange(
+                 newPosition(issue.lineNumber,issue.column),
+                 newPosition(issue.lineNumber,issue.column + issue.length)
+            )
         ]
     }
     

plugins/org.eclipse.xtext.ide/src/org/eclipse/xtext/ide/server/ProjectManager.xtend

@@ -25,6 +25,7 @@ import org.eclipse.xtext.resource.impl.ChunkedResourceDescriptions
 import org.eclipse.xtext.resource.impl.ProjectDescription
 import org.eclipse.xtext.resource.impl.ResourceDescriptionsData
 import org.eclipse.xtext.validation.Issue
+import org.eclipse.xtext.util.IFileSystemScanner
 
 /**
  * @author Sven Efftinge - Initial contribution and API

plugins/org.eclipse.xtext.util/src/org/eclipse/xtext/util/IFileSystemScanner.xtend

@@ -5,7 +5,7 @@
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *******************************************************************************/
-package org.eclipse.xtext.ide.server
+package org.eclipse.xtext.util
 
 import org.eclipse.xtext.util.IAcceptor
 import org.eclipse.emf.common.util.URI