Make synchronous

Author: CyrusNajmabadi

src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_Callers.cs

@@ -38,7 +38,7 @@ public static async Task<IEnumerable<SymbolCallerInfo>> FindCallersAsync(
             throw new System.ArgumentNullException(nameof(solution));
 
         symbol = symbol.OriginalDefinition;
-        var foundSymbol = await FindSourceDefinitionAsync(symbol, solution, cancellationToken).ConfigureAwait(false);
+        var foundSymbol = FindSourceDefinition(symbol, solution, cancellationToken);
         symbol = foundSymbol ?? symbol;
 
         var references = await FindCallReferencesAsync(solution, symbol, documents, cancellationToken).ConfigureAwait(false);

src/Workspaces/Core/Portable/FindSymbols/SymbolFinder_Hierarchy.cs

@@ -166,7 +166,7 @@ internal static async Task<ImmutableArray<ISymbol>> FindImplementedInterfaceMemb
                             {
                                 foreach (var interfaceMember in interfaceType.GetMembers(symbol.Name))
                                 {
-                                    var sourceMethod = await FindSourceDefinitionAsync(interfaceMember, solution, cancellationToken).ConfigureAwait(false);
+                                    var sourceMethod = FindSourceDefinition(interfaceMember, solution, cancellationToken);
                                     var bestMethod = sourceMethod ?? interfaceMember;
 
                                     var implementations = type.FindImplementationsForInterfaceMember(bestMethod, solution, cancellationToken);
@@ -373,7 +373,7 @@ internal static async Task<ImmutableArray<ISymbol>> FindMemberImplementationsArr
             var implementations = t.FindImplementationsForInterfaceMember(symbol, solution, cancellationToken);
             foreach (var implementation in implementations)
             {
-                var sourceDef = await FindSourceDefinitionAsync(implementation, solution, cancellationToken).ConfigureAwait(false);
+                var sourceDef = FindSourceDefinition(implementation, solution, cancellationToken);
                 var bestDef = sourceDef ?? implementation;
                 if (IsAccessible(bestDef))
                     results.Add(bestDef.OriginalDefinition);