diff --git a/Sources/Frontend/Scan.swift b/Sources/Frontend/Scan.swift
index 755e35648..a0a1a8f14 100644
--- a/Sources/Frontend/Scan.swift
+++ b/Sources/Frontend/Scan.swift
@@ -35,6 +35,10 @@ final class Scan {
 
         try build(driver)
         try index(driver)
+
+//        print("ATTACH")
+//        Thread.sleep(forTimeInterval: 15)
+
         try analyze()
         return buildResults()
     }
diff --git a/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift b/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift
index 47363b36a..6b083da51 100644
--- a/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift
+++ b/Sources/SourceGraph/Mutators/ExtensionReferenceBuilder.swift
@@ -23,11 +23,11 @@ final class ExtensionReferenceBuilder: SourceGraphMutator {
             guard let extendedDeclaration = graph.explicitDeclaration(withUsr: extendedTypeReference.usr) else {
                 // This is an extension on an external type and cannot be folded.
                 graph.markRetained(extensionDeclaration)
-                referenceExtendedTypeAliases(of: extendedTypeReference, from: extensionDeclaration)
+//                referenceExtendedTypeAliases(of: extendedTypeReference, from: extensionDeclaration)
                 continue
             }
 
-            referenceExtendedTypeAliases(of: extendedTypeReference, from: extendedDeclaration)
+//            referenceExtendedTypeAliases(of: extendedTypeReference, from: extendedDeclaration)
 
             // Don't fold protocol extensions as they must be treated differently.
             guard kind != .extensionProtocol else { continue }
@@ -56,6 +56,7 @@ final class ExtensionReferenceBuilder: SourceGraphMutator {
 
         for reference in extendedTypeReferences {
             guard let aliasDecl = reference.parent, aliasDecl.kind == .typealias else { continue }
+//            print(aliasDecl)
             for usr in aliasDecl.usrs {
                 let aliasReference = Reference(kind: .typealias, usr: usr, location: extensionDeclaration.location)
                 aliasReference.name = aliasDecl.name
diff --git a/Sources/Indexer/SourceGraphDebugger.swift b/Sources/SourceGraph/SourceGraphDebugger.swift
similarity index 100%
rename from Sources/Indexer/SourceGraphDebugger.swift
rename to Sources/SourceGraph/SourceGraphDebugger.swift
diff --git a/Sources/SourceGraph/SourceGraphMutatorRunner.swift b/Sources/SourceGraph/SourceGraphMutatorRunner.swift
index 311fd9bf0..1d9e87204 100644
--- a/Sources/SourceGraph/SourceGraphMutatorRunner.swift
+++ b/Sources/SourceGraph/SourceGraphMutatorRunner.swift
@@ -3,6 +3,7 @@ import Shared
 
 public final class SourceGraphMutatorRunner {
     public static func perform(graph: SourceGraph) throws {
+//        SourceGraphDebugger(graph: graph).describeGraph()
         try self.init(graph: graph).perform()
     }