spelling: differentiate

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

Author: jsoref

lib/SyntaxParse/SyntaxTreeCreator.cpp

@@ -199,14 +199,14 @@ OpaqueSyntaxNode SyntaxTreeCreator::makeDeferredLayout(
 
 OpaqueSyntaxNode
 SyntaxTreeCreator::recordDeferredToken(OpaqueSyntaxNode deferred) {
-  // We don't diffirentiate between deferred and recorded nodes. See comment in
+  // We don't differentiate between deferred and recorded nodes. See comment in
   // makeDeferredToken.
   return deferred;
 }
 
 OpaqueSyntaxNode
 SyntaxTreeCreator::recordDeferredLayout(OpaqueSyntaxNode deferred) {
-  // We don't diffirentiate between deferred and recorded nodes. See comment in
+  // We don't differentiate between deferred and recorded nodes. See comment in
   // makeDeferredToken.
   return deferred;
 }