Fix CLI rename-symbol support for top-level statement (#1721)

* Fix CLI rename-symbol ignore implicitly declared method parameters (e.g. top-level statement string[] args)

* Fix CLI rename-symbol: add support for top-level statements in LocalSymbolFinder.FindLocalSymbols

* Use explicit type instead of 'var'

* Update src/Workspaces.Core/Rename/SymbolListHelpers.cs

* Changelog update

---------

Co-authored-by: Josef Pihrt <[email protected]>

Author: andrtmschkw

ChangeLog.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix analyzer [RCS1172](https://josefpihrt.github.io/docs/roslynator/analyzers/RCS1172) ([PR](https://github.com/dotnet/roslynator/pull/1710))
 - [CLI] Fix `loc` command ([PR](https://github.com/dotnet/roslynator/pull/1711))
 - Exclude ref-field backed properties from [RCS1085](https://josefpihrt.github.io/docs/roslynator/analyzers/RCS1085) ([PR](https://github.com/dotnet/roslynator/pull/1718) by @ovska)
+- [CLI] Fix `rename-symbol` support for top-level statement ([PR](https://github.com/dotnet/roslynator/pull/1721))
 
 ## [4.14.1] - 2025-10-05
 

src/CSharp.Workspaces/CSharp/FindSymbols/LocalSymbolFinder.cs

@@ -2,6 +2,7 @@
 
 using System.Collections.Immutable;
 using System.Diagnostics;
+using System.Linq;
 using System.Threading;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
@@ -102,6 +103,15 @@ public static ImmutableArray<ISymbol> FindLocalSymbols(
                 walker.Visit(declaration.BodyOrExpressionBody());
                 break;
             }
+            case SyntaxKind.CompilationUnit:
+            {
+                var declaration = (CompilationUnitSyntax)node;
+                foreach (GlobalStatementSyntax globalStatement in declaration.Members.OfType<GlobalStatementSyntax>())
+                {
+                    walker.Visit(globalStatement);
+                }
+                break;
+            }
             case SyntaxKind.Parameter:
             case SyntaxKind.RecordDeclaration:
             {

src/Workspaces.Core/Rename/SymbolListHelpers.cs

@@ -93,7 +93,7 @@ public static List<ISymbol> SortAndFilterMemberSymbols(IEnumerable<ISymbol> symb
                     results.Add(symbol);
 
                 results.AddRange(methodSymbol.TypeParameters);
-                results.AddRange(methodSymbol.Parameters);
+                results.AddRange(methodSymbol.Parameters.Where(p => !p.IsImplicitlyDeclared));
             }
             else
             {