From 20f671ede2d9f2eb4cd4088e4b36aeed9bd0472f Mon Sep 17 00:00:00 2001
From: Sheetal Nandi <shkamat@microsoft.com>
Date: Fri, 14 Sep 2018 11:07:22 -0700
Subject: [PATCH] PR feedback

---
 src/compiler/program.ts   | 4 +++-
 src/compiler/utilities.ts | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 970689f93c3..d15b5935224 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -1017,13 +1017,14 @@ namespace ts {
 
             // If array of references is changed, we cant resue old program
             const oldProjectReferences = oldProgram.getProjectReferences();
-            if (!arrayIsEqualTo(oldProjectReferences!, projectReferences, projectReferencesIsEqualTo)) {
+            if (!arrayIsEqualTo(oldProjectReferences!, projectReferences, projectReferenceIsEqualTo)) {
                 return oldProgram.structureIsReused = StructureIsReused.Not;
             }
 
             // Check the json files for the project references
             const oldRefs = oldProgram.getResolvedProjectReferences();
             if (projectReferences) {
+                // Resolved project referenced should be array if projectReferences provided are array
                 Debug.assert(!!oldRefs);
                 for (let i = 0; i < projectReferences.length; i++) {
                     const oldRef = oldRefs![i];
@@ -1043,6 +1044,7 @@ namespace ts {
                 }
             }
             else {
+                // Resolved project referenced should be undefined if projectReferences is undefined
                 Debug.assert(!oldRefs);
             }
 
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
index 51315dbf455..907e921b91f 100644
--- a/src/compiler/utilities.ts
+++ b/src/compiler/utilities.ts
@@ -249,7 +249,7 @@ namespace ts {
         sourceFile.resolvedTypeReferenceDirectiveNames.set(typeReferenceDirectiveName, resolvedTypeReferenceDirective);
     }
 
-    export function projectReferencesIsEqualTo(oldRef: ProjectReference, newRef: ProjectReference) {
+    export function projectReferenceIsEqualTo(oldRef: ProjectReference, newRef: ProjectReference) {
         return oldRef.path === newRef.path &&
             !oldRef.prepend === !newRef.prepend &&
             !oldRef.circular === !newRef.circular;