From 896feeaf7c524f54d87209feaf759c8f80ebabfc Mon Sep 17 00:00:00 2001
From: Tagir Valeev <Tagir.Valeev@jetbrains.com>
Date: Wed, 17 Jul 2019 11:51:56 +0700
Subject: [PATCH] ControlFlowUtil#findReferenceTo: minor performance
 improvements

GitOrigin-RevId: b08accca0aa26c6ca1a78ba0f204521422d74e4e
---
 .../src/com/intellij/psi/controlFlow/ControlFlowUtil.java    | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/java/java-psi-impl/src/com/intellij/psi/controlFlow/ControlFlowUtil.java b/java/java-psi-impl/src/com/intellij/psi/controlFlow/ControlFlowUtil.java
index a6413ae8bb5e..20eafb1cce1f 100644
--- a/java/java-psi-impl/src/com/intellij/psi/controlFlow/ControlFlowUtil.java
+++ b/java/java-psi-impl/src/com/intellij/psi/controlFlow/ControlFlowUtil.java
@@ -1213,11 +1213,10 @@ public class ControlFlowUtil {
   private static PsiReferenceExpression findReferenceTo(@NotNull PsiElement element, @NotNull PsiVariable variable) {
     if (element instanceof PsiReferenceExpression
         && ExpressionUtil.isEffectivelyUnqualified((PsiReferenceExpression)element)
-        && ((PsiReferenceExpression)element).resolve() == variable) {
+        && ((PsiReferenceExpression)element).isReferenceTo(variable)) {
       return (PsiReferenceExpression)element;
     }
-    final PsiElement[] children = element.getChildren();
-    for (PsiElement child : children) {
+    for (PsiElement child = element.getFirstChild(); child != null; child = child.getNextSibling()) {
       final PsiReferenceExpression reference = findReferenceTo(child, variable);
       if (reference != null) return reference;
     }