Cleaned up handling of assembly directory. This fixes the fact that .pdb files weren't put in the same directory as the corresponding modules.

refemit/AssemblyBuilder.cs

@@ -41,7 +41,7 @@ namespace IKVM.Reflection.Emit
 #endif
 	{
 		private readonly AssemblyName name;
-		private readonly string dir;
+		internal readonly string dir;
 		private readonly PermissionSet requiredPermissions;
 		private readonly PermissionSet optionalPermissions;
 		private readonly PermissionSet refusedPermissions;
@@ -63,7 +63,7 @@ namespace IKVM.Reflection.Emit
 		private AssemblyBuilder(AssemblyName name, string dir, PermissionSet requiredPermissions, PermissionSet optionalPermissions, PermissionSet refusedPermissions)
 		{
 			this.name = name;
-			this.dir = dir;
+			this.dir = dir ?? ".";
 			this.requiredPermissions = requiredPermissions;
 			this.optionalPermissions = optionalPermissions;
 			this.refusedPermissions = refusedPermissions;
@@ -241,12 +241,12 @@ namespace IKVM.Reflection.Emit
 					int fileToken;
 					if (entryPoint != null && entryPoint.ModuleBuilder == moduleBuilder)
 					{
-						ModuleWriter.WriteModule(dir, null, moduleBuilder, fileKind, portableExecutableKind, imageFileMachine, null, entryPoint.MetadataToken);
+						ModuleWriter.WriteModule(null, moduleBuilder, fileKind, portableExecutableKind, imageFileMachine, null, entryPoint.MetadataToken);
 						entryPointToken = fileToken = AddFile(manifestModule, moduleBuilder.fileName, 0 /*ContainsMetaData*/);
 					}
 					else
 					{
-						ModuleWriter.WriteModule(dir, null, moduleBuilder, fileKind, portableExecutableKind, imageFileMachine, null, 0);
+						ModuleWriter.WriteModule(null, moduleBuilder, fileKind, portableExecutableKind, imageFileMachine, null, 0);
 						fileToken = AddFile(manifestModule, moduleBuilder.fileName, 0 /*ContainsMetaData*/);
 					}
 					moduleBuilder.ExportTypes(fileToken, manifestModule);
@@ -259,7 +259,7 @@ namespace IKVM.Reflection.Emit
 			}
 
 			// finally, write the manifest module
-			ModuleWriter.WriteModule(dir, name.KeyPair, manifestModule, fileKind, portableExecutableKind, imageFileMachine, versionInfoData, entryPointToken);
+			ModuleWriter.WriteModule(name.KeyPair, manifestModule, fileKind, portableExecutableKind, imageFileMachine, versionInfoData, entryPointToken);
 		}
 
 		private int AddFile(ModuleBuilder manifestModule, string fileName, int flags)

refemit/ModuleBuilder.cs

@@ -1015,7 +1015,7 @@ namespace IKVM.Reflection.Emit
 		{
 			get
 			{
-				return Path.GetFullPath(fileName);
+				return Path.GetFullPath(Path.Combine(asm.dir, fileName));
 			}
 		}
 

refemit/Writer/ModuleWriter.cs

@@ -36,7 +36,7 @@ namespace IKVM.Reflection.Emit.Writer
 	{
 		private const int versionInfoResourceHeaderLength = 0x58;
 
-		internal static void WriteModule(string directory, StrongNameKeyPair keyPair, ModuleBuilder moduleBuilder, PEFileKinds fileKind, PortableExecutableKinds portableExecutableKind, ImageFileMachine imageFileMachine, ByteBuffer versionInfoData, int entryPointToken)
+		internal static void WriteModule(StrongNameKeyPair keyPair, ModuleBuilder moduleBuilder, PEFileKinds fileKind, PortableExecutableKinds portableExecutableKind, ImageFileMachine imageFileMachine, ByteBuffer versionInfoData, int entryPointToken)
 		{
 			moduleBuilder.FixupMethodBodyTokens();
 
@@ -48,12 +48,7 @@ namespace IKVM.Reflection.Emit.Writer
 				moduleBuilder.UserStrings.Add(" ");
 			}
 
-			string fileName = moduleBuilder.fileName;
-			if (directory != null)
-			{
-				fileName = Path.Combine(directory, fileName);
-			}
-			using (FileStream fs = new FileStream(fileName, FileMode.Create))
+			using (FileStream fs = new FileStream(moduleBuilder.FullyQualifiedName, FileMode.Create))
 			{
 				PEWriter writer = new PEWriter(fs);
 				switch (imageFileMachine)