Remove origina name parameter. it's redundant.

src/EditorFeatures/Core.Wpf/InlineRename/AbstractEditorInlineRenameService.InlineRenameLocationSet.cs

@@ -40,8 +40,8 @@ private InlineRenameLocation ConvertLocation(RenameLocation location)
             public async Task<IInlineRenameReplacementInfo> GetReplacementsAsync(string replacementText, OptionSet optionSet, CancellationToken cancellationToken)
             {
                 var conflicts = await ConflictResolver.ResolveConflictsAsync(
-                    _renameLocationSet, _renameLocationSet.Symbol.Name,
-                    _renameInfo.GetFinalSymbolName(replacementText), nonConflictSymbols: null, cancellationToken: cancellationToken).ConfigureAwait(false);
+                    _renameLocationSet, _renameInfo.GetFinalSymbolName(replacementText),
+                    nonConflictSymbols: null, cancellationToken: cancellationToken).ConfigureAwait(false);
 
                 return new InlineRenameReplacementInfo(conflicts);
             }

src/EditorFeatures/Test2/Rename/RenameEngineResult.vb

@@ -79,7 +79,7 @@ Namespace Microsoft.CodeAnalysis.Editor.UnitTests.Rename
                 Dim locations = RenameLocations.FindAsync(symbolAndProjectId, workspace.CurrentSolution, optionSet, CancellationToken.None).Result
                 Dim originalName = symbol.Name.Split("."c).Last()
 
-                Dim result = ConflictResolver.ResolveConflictsAsync(locations, originalName, renameTo, nonConflictSymbols:=Nothing, cancellationToken:=CancellationToken.None).Result
+                Dim result = ConflictResolver.ResolveConflictsAsync(locations, renameTo, nonConflictSymbols:=Nothing, cancellationToken:=CancellationToken.None).Result
 
                 engineResult = New RenameEngineResult(workspace, result, renameTo)
                 engineResult.AssertUnlabeledSpansRenamedAndHaveNoConflicts()

src/Workspaces/Core/Portable/Rename/ConflictEngine/ConflictResolver.Session.cs

@@ -56,14 +56,13 @@ private class Session
             public Session(
                 RenameLocations renameLocationSet,
                 Location renameSymbolDeclarationLocation,
-                string originalText,
                 string replacementText,
                 ImmutableHashSet<ISymbol> nonConflictSymbols,
                 CancellationToken cancellationToken)
             {
                 _renameLocationSet = renameLocationSet;
                 _renameSymbolDeclarationLocation = renameSymbolDeclarationLocation;
-                _originalText = originalText;
+                _originalText = renameLocationSet.Symbol.Name;
                 _replacementText = replacementText;
                 _optionSet = renameLocationSet.Options;
                 _nonConflictSymbols = nonConflictSymbols;

src/Workspaces/Core/Portable/Rename/ConflictEngine/ConflictResolver.cs

@@ -41,7 +41,6 @@ internal static partial class ConflictResolver
         /// resolves them where possible.
         /// </summary>
         /// <param name="renameLocationSet">The locations to perform the renaming at.</param>
-        /// <param name="originalText">The original name of the identifier.</param>
         /// <param name="replacementText">The new name of the identifier</param>
         /// <param name="nonConflictSymbols">Used after renaming references. References that now bind to any of these
         /// symbols are not considered to be in conflict. Useful for features that want to rename existing references to
@@ -51,7 +50,6 @@ internal static partial class ConflictResolver
         /// <returns>A conflict resolution containing the new solution.</returns>
         public static Task<ConflictResolution> ResolveConflictsAsync(
             RenameLocations renameLocationSet,
-            string originalText,
             string replacementText,
             ImmutableHashSet<ISymbol> nonConflictSymbols,
             CancellationToken cancellationToken)
@@ -68,8 +66,7 @@ internal static partial class ConflictResolver
 
             var session = new Session(
                 renameLocationSet, renameSymbolDeclarationLocation,
-                originalText, replacementText,
-                nonConflictSymbols, cancellationToken);
+                replacementText, nonConflictSymbols, cancellationToken);
             return session.ResolveConflictsAsync();
         }
 

src/Workspaces/Core/Portable/Rename/Renamer.cs

@@ -61,8 +61,7 @@ public static class Renamer
             cancellationToken.ThrowIfCancellationRequested();
 
             var conflictResolution = await ConflictResolver.ResolveConflictsAsync(
-                locations, locations.SymbolAndProjectId.Symbol.Name, newName,
-                nonConflictSymbols, cancellationToken).ConfigureAwait(false);
+                locations, newName, nonConflictSymbols, cancellationToken).ConfigureAwait(false);
 
             return conflictResolution.NewSolution;
         }