Revert "Ignore external (no module) translation units"

This reverts commit 0d8b236f7e.

src/Generator.Tests/GeneratorTest.cs

@@ -44,16 +44,9 @@ namespace CppSharp.Utils
             testModule.Libraries.Add($"{name}.Native");
 
             Diagnostics.Message("Looking for tests in: {0}", path);
-            var files = Directory.EnumerateFiles(path, "*.h", SearchOption.AllDirectories);
+            var files = Directory.EnumerateFiles(path, "*.h");
             foreach (var file in files)
-            {
-                string includeDir = Path.GetDirectoryName(file);
-                if (!testModule.IncludeDirs.Contains(includeDir))
-                {
-                    testModule.IncludeDirs.Add(includeDir);
-                }
                 testModule.Headers.Add(Path.GetFileName(file));
-            }
         }
 
         public virtual void Preprocess(Driver driver, ASTContext ctx)

src/Generator/Passes/CleanUnitPass.cs

@@ -31,14 +31,9 @@ namespace CppSharp.Passes
                 includeDir = ".";
             includeDir = Path.GetFullPath(includeDir);
 
-            Module module = Options.Modules.Find(
-                m => m.IncludeDirs.Any(i => Path.GetFullPath(i) == includeDir));
-            if (module == null)
-            {
-                unit.ExplicitlyIgnore();
-                module = Options.Modules[1];
-            }
-            return module;
+            return Options.Modules.FirstOrDefault(
+                m => m.IncludeDirs.Any(i => Path.GetFullPath(i) == includeDir)) ??
+                    Options.Modules[1];
         }
 
         public override bool VisitDeclarationContext(DeclarationContext context)
@@ -46,9 +41,10 @@ namespace CppSharp.Passes
             return false;
         }
 
-        private string GetIncludePath(string filePath)
+        string GetIncludePath(string filePath)
         {
             var includePath = filePath;
+            var shortestIncludePath = filePath;
 
             for (uint i = 0; i < Context.ParserOptions.IncludeDirsCount; ++i)
             {
@@ -61,15 +57,16 @@ namespace CppSharp.Passes
                     idx = filePath.IndexOf(path, System.StringComparison.Ordinal);
                 }
 
-                if (idx != -1)
-                {
-                    includePath = filePath[path.Length..];
-                    break;
-                }
+                if (idx == -1) continue;
+
+                string inc = filePath.Substring(path.Length);
+
+                if (inc.Length < includePath.Length && inc.Length < shortestIncludePath.Length)
+                    shortestIncludePath = inc;
             }
 
             includePath = Options.IncludePrefix
-                + includePath.TrimStart(new char[] { '\\', '/' });
+                + shortestIncludePath.TrimStart(new char[] { '\\', '/' });
 
             return includePath.Replace('\\', '/');
         }

src/Generator/Passes/DelegatesPass.cs

@@ -215,8 +215,7 @@ namespace CppSharp.Passes
             Namespace parent = null;
             if (string.IsNullOrEmpty(module.OutputNamespace))
             {
-                var groups = module.Units.Where(u => u.IsGenerated).SelectMany(
-                    u => u.Declarations).OfType<Namespace>(
+                var groups = module.Units.SelectMany(u => u.Declarations).OfType<Namespace>(
                     ).GroupBy(d => d.Name).Where(g => g.Any(d => d.HasDeclarations)).ToList();
                 if (groups.Count == 1)
                     parent = groups.Last().Last();
@@ -232,7 +231,7 @@ namespace CppSharp.Passes
             }
 
             if (parent == null)
-                parent = module.Units.Last(u => u.IsGenerated);
+                parent = module.Units.Last();
 
             var namespaceDelegates = new Namespace
             {