Get rid of forwarding methods.

src/Features/CSharp/Portable/Completion/CompletionProviders/AttributeNamedParameterCompletionProvider.cs

@@ -151,7 +151,7 @@ private bool IsAfterNameEqualsArgument(SyntaxToken token)
                     select SymbolCompletionItem.CreateWithSymbolId(
                        displayText: p.Name.ToIdentifierToken().ToString() + SpaceEqualsString,
                        insertionText: null,
-                       symbol: p,
+                       symbols: ImmutableArray.Create(p),
                        contextPosition: token.SpanStart,
                        sortText: p.Name,
                        rules: _spaceItemFilterRule);
@@ -171,7 +171,7 @@ private bool IsAfterNameEqualsArgument(SyntaxToken token)
                    select SymbolCompletionItem.CreateWithSymbolId(
                        displayText: p.Name.ToIdentifierToken().ToString() + ColonString,
                        insertionText: null,
-                       symbol: p,
+                       symbols: ImmutableArray.Create(p),
                        contextPosition: token.SpanStart,
                        sortText: p.Name,
                        rules: CompletionItemRules.Default);

src/Features/CSharp/Portable/Completion/CompletionProviders/EnumAndCompletionListTagCompletionProvider.cs

@@ -113,7 +113,7 @@ public override async Task ProvideCompletionsAsync(CompletionContext context)
 
                 var item = SymbolCompletionItem.CreateWithSymbolId(
                     displayText: displayText,
-                    symbol: alias ?? type,
+                    symbols: ImmutableArray.Create(alias ?? type),
                     rules: s_rules.WithMatchPriority(MatchPriority.Preselect),
                     contextPosition: position);
 

src/Features/CSharp/Portable/Completion/CompletionProviders/ExplicitInterfaceCompletionProvider.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
+using System.Collections.Immutable;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -99,7 +100,7 @@ public override async Task ProvideCompletionsAsync(CompletionContext context)
                 var item = SymbolCompletionItem.CreateWithSymbolId(
                     displayText,
                     insertionText: insertionText,
-                    symbol: member,
+                    symbols: ImmutableArray.Create(member),
                     contextPosition: position,
                     rules: CompletionItemRules.Default);
                 item = item.AddProperty(InsertionTextOnOpenParen, member.Name);

src/Features/CSharp/Portable/Completion/CompletionProviders/NamedParameterCompletionProvider.cs

@@ -97,7 +97,7 @@ public override async Task ProvideCompletionsAsync(CompletionContext context)
 
                 context.AddItem(SymbolCompletionItem.CreateWithSymbolId(
                     displayText: escapedName + ColonString,
-                    symbol: parameter,
+                    symbols: ImmutableArray.Create(parameter),
                     rules: s_rules.WithMatchPriority(SymbolMatchPriority.PreferNamedArgument),
                     contextPosition: token.SpanStart,
                     filterText: escapedName));

src/Features/Core/Portable/Completion/Providers/AbstractObjectInitializerCompletionProvider.cs

@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -64,7 +65,7 @@ public override async Task ProvideCompletionsAsync(CompletionContext context)
                 context.AddItem(SymbolCompletionItem.CreateWithSymbolId(
                     displayText: uninitializedMember.Name,
                     insertionText: null,
-                    symbol: uninitializedMember,
+                    symbols: ImmutableArray.Create(uninitializedMember),
                     contextPosition: initializerLocation.SourceSpan.Start,
                     rules: s_rules));
             }

src/Features/Core/Portable/Completion/Providers/AbstractPartialTypeCompletionProvider.cs

@@ -56,7 +56,7 @@ public async sealed override Task ProvideCompletionsAsync(CompletionContext comp
             return SymbolCompletionItem.CreateWithSymbolId(
                 displayText: displayAndInsertionText.Item1,
                 insertionText: displayAndInsertionText.Item2,
-                symbol: symbol,
+                symbols: ImmutableArray.Create(symbol),
                 contextPosition: context.Position,
                 properties: GetProperties(symbol, context),
                 rules: CompletionItemRules.Default);

src/Features/Core/Portable/Completion/Providers/MemberInsertingCompletionItem.cs

@@ -26,7 +26,7 @@ internal class MemberInsertionCompletionItem
 
             return SymbolCompletionItem.CreateWithSymbolId(
                 displayText: displayText,
-                symbol: symbol,
+                symbols: ImmutableArray.Create(symbol),
                 glyph: glyph,
                 contextPosition: descriptionPosition,
                 properties: props,

src/Features/Core/Portable/Completion/Providers/SymbolCompletionItem.cs

@@ -65,33 +65,6 @@ public static CompletionItem AddSymbolNameAndKind(IReadOnlyList<ISymbol> symbols
                        .AddProperty("SymbolName", symbol.Name);
         }
 
-        private static CompletionItem CreateWorker(
-            string displayText,
-            ISymbol symbol,
-            CompletionItemRules rules,
-            Func<IReadOnlyList<ISymbol>, CompletionItem, CompletionItem> symbolEncoder,
-            int contextPosition = -1,
-            string sortText = null,
-            string insertionText = null,
-            Glyph? glyph = null,
-            string filterText = null,
-            SupportedPlatformData supportedPlatforms = null,
-            ImmutableDictionary<string, string> properties = null)
-        {
-            return CreateWorker(
-                displayText: displayText,
-                symbols: ImmutableArray.Create(symbol),
-                rules: rules,
-                symbolEncoder: symbolEncoder,
-                contextPosition: contextPosition,
-                sortText: sortText,
-                insertionText: insertionText,
-                glyph: glyph,
-                filterText: filterText,
-                supportedPlatforms: supportedPlatforms,
-                properties: properties);
-        }
-
         public static string EncodeSymbols(IReadOnlyList<ISymbol> symbols)
         {
             if (symbols.Count > 1)
@@ -286,24 +259,6 @@ public static string GetInsertionText(CompletionItem item)
                 filterText, supportedPlatforms, properties, tags);
         }
 
-        public static CompletionItem CreateWithSymbolId(
-            string displayText,
-            ISymbol symbol,
-            CompletionItemRules rules,
-            int contextPosition,
-            string sortText = null,
-            string insertionText = null,
-            Glyph? glyph = null,
-            string filterText = null,
-            SupportedPlatformData supportedPlatforms = null,
-            ImmutableDictionary<string, string> properties = null)
-        {
-            return CreateWorker(
-                displayText, symbol, rules, AddSymbolEncoding, 
-                contextPosition, sortText, insertionText, glyph,
-                filterText, supportedPlatforms, properties);
-        }
-
         public static CompletionItem CreateWithNameAndKind(
             string displayText,
             IReadOnlyList<ISymbol> symbols,

src/Features/VisualBasic/Portable/Completion/CompletionProviders/HandlesClauseCompletionProvider.vb

@@ -123,7 +123,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Completion.Providers
             Return SymbolCompletionItem.CreateWithSymbolId(
                 displayText:=displayAndInsertionText.Item1,
                 insertionText:=displayAndInsertionText.Item2,
-                symbol:=symbol,
+                symbols:=ImmutableArray.Create(symbol),
                 contextPosition:=context.Position,
                 rules:=CompletionItemRules.Default)
         End Function

src/Features/VisualBasic/Portable/Completion/CompletionProviders/NamedParameterCompletionProvider.vb

@@ -69,7 +69,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Completion.Providers
                 context.AddItem(SymbolCompletionItem.CreateWithSymbolId(
                     displayText:=parameter.Name & s_colonEquals,
                     insertionText:=parameter.Name.ToIdentifierToken().ToString() & s_colonEquals,
-                    symbol:=parameter,
+                    symbols:=ImmutableArray.Create(parameter),
                     contextPosition:=position,
                     rules:=s_itemRules))
             Next