addressed CR feedback

Author: vladima

src/services/services.ts

@@ -2088,7 +2088,7 @@ module ts {
             }
 
             // TODO: this is a hack for now, we need a proper walking mechanism to verify that we have the correct node
-            var mappedNode = getTouchingToken(sourceFile, TypeScript.end(node) - 1, /*allowPositionInLeadingTrivia*/ false);
+            var mappedNode = getTouchingToken(sourceFile, TypeScript.end(node) - 1);
             if (isPunctuation(mappedNode.kind)) {
                 mappedNode = mappedNode.parent;
             }
@@ -4022,7 +4022,7 @@ module ts {
             var sourceFile = getCurrentSourceFile(filename);
             var result: TypeScript.TextSpan[] = [];
 
-            var token = getTouchingToken(sourceFile, position, /*allowPositionInLeadingTrivia*/ false);
+            var token = getTouchingToken(sourceFile, position);
 
             if (token.getStart(sourceFile) === position) {
                 var matchKind = getMatchingTokenKind(token);
@@ -4178,7 +4178,7 @@ module ts {
 
                     // OK, we have found a match in the file.  This is only an acceptable match if
                     // it is contained within a comment.
-                    var token = getTouchingToken(sourceFile, matchPosition, /*allowPositionInLeadingTrivia*/ true);
+                    var token = getTokenAtPosition(sourceFile, matchPosition);
 
                     if (token.getStart() <= matchPosition && matchPosition < token.getEnd()) {
                         // match was within the token itself.  Not in the comment.  Keep searching

src/services/utilities.ts

@@ -50,18 +50,28 @@ module ts {
      * position >= start and (position < end or (position === end && token is keyword or identifier))
      */
     export function getTouchingWord(sourceFile: SourceFile, position: number): Node {
-        return getTouchingToken(sourceFile, position, /*allowPositionInLeadingTrivia*/ false, isWord);
+        return getTouchingToken(sourceFile, position, isWord);
     }
 
     /* Gets the token whose text has range [start, end) and position >= start 
      * and (position < end or (position === end && token is keyword or identifier or numeric\string litera))
      */
     export function getTouchingPropertyName(sourceFile: SourceFile, position: number): Node {
-        return getTouchingToken(sourceFile, position, /*allowPositionInLeadingTrivia*/ false, isPropertyName);
+        return getTouchingToken(sourceFile, position, isPropertyName);
+    }
+
+    /** Returns the token if position is in [start, end) or if position === end and includeItemAtEndPosition(token) === true */
+    export function getTouchingToken(sourceFile: SourceFile, position: number, includeItemAtEndPosition?: (n: Node) => boolean): Node {
+        return getTokenAtPositionWorker(sourceFile, position, /*allowPositionInLeadingTrivia*/ false, includeItemAtEndPosition);
+    }
+
+    /** Returns a token if position is in [start-of-leading-trivia, end) */
+    export function getTokenAtPosition(sourceFile: SourceFile, position: number): Node {
+        return getTokenAtPositionWorker(sourceFile, position, /*allowPositionInLeadingTrivia*/ true, /*includeItemAtEndPosition*/ undefined);
     }
 
     /** Get the token whose text contains the position */
-    export function getTouchingToken(sourceFile: SourceFile, position: number, allowPositionInLeadingTrivia: boolean, includeItemAtEndPosition?: (n: Node) => boolean): Node {
+    function getTokenAtPositionWorker(sourceFile: SourceFile, position: number, allowPositionInLeadingTrivia: boolean, includeItemAtEndPosition: (n: Node) => boolean): Node {
         var current: Node = sourceFile;
         outer: while (true) {
             if (isToken(current)) {
@@ -101,7 +111,7 @@ module ts {
     export function findTokenOnLeftOfPosition(file: SourceFile, position: number): Node {
         // Ideally, getTokenAtPosition should return a token. However, it is currently
         // broken, so we do a check to make sure the result was indeed a token.
-        var tokenAtPosition = getTouchingToken(file, position, /*allowPositionInLeadingTrivia*/ true);
+        var tokenAtPosition = getTokenAtPosition(file, position);
         if (isToken(tokenAtPosition) && position > tokenAtPosition.getStart(file) && position < tokenAtPosition.getEnd()) {
             return tokenAtPosition;
         }