If you try to GTD on a global import alias declared in a VB project file, we...

If you try to GTD on a global import alias declared in a VB project file, we null ref. This happens because the compiler synthesizes a SyntaxTree for that imports statement, but we assume that all symbols that have Locations have Locations in the current Solution. To avoid this, detect if the caret is on a alias with no locations in the solution, and in that case, GTD on the target instead. (changeset 1272875)

Src/Workspaces/Core/Shared/Extensions/CommonLocationExtensions.cs

@@ -13,7 +13,7 @@ public static SyntaxToken FindToken(this Location location, CancellationToken ca
             return location.SourceTree.GetRoot(cancellationToken).FindToken(location.SourceSpan.Start);
         }
 
-        public static bool IsVisibleSourceLocation(this Location loc, Solution solution)
+        public static bool IsVisibleSourceLocation(this Location loc)
         {
             if (!loc.IsInSource)
             {