Fix names

Author: David Ungar

Sources/SwiftDriver/IncrementalCompilation/ModuleDependencyGraph.swift

@@ -345,7 +345,7 @@ extension ModuleDependencyGraph {
   where Nodes.Element == Node
   {
     for node in nodes {
-      node.beUntraced()
+      node.setUntraced()
     }
   }
 }

Sources/SwiftDriver/IncrementalCompilation/ModuleDependencyGraphParts/Node.swift

@@ -62,8 +62,8 @@ extension ModuleDependencyGraph {
 // MARK: - trace status
 extension ModuleDependencyGraph.Node {
   var isUntraced: Bool { !isTraced }
-  func beTraced() { isTraced = true }
-  func beUntraced() { isTraced = false }
+  func setTraced() { isTraced = true }
+  func setUntraced() { isTraced = false }
 }
 
 // MARK: - comparing, hashing

Sources/SwiftDriver/IncrementalCompilation/ModuleDependencyGraphParts/Tracer.swift

@@ -73,7 +73,7 @@ extension ModuleDependencyGraph.Tracer {
     of definition: ModuleDependencyGraph.Node
   ) {
     guard definition.isUntraced else { return }
-    definition.beTraced()
+    definition.setTraced()
 
     tracedUses.append(definition)