Convert all existing double quotes to single for raw strings

Author: machitgarha

src/NodeVisitor.php

@@ -166,7 +166,7 @@ public function enterNode(Node $node)
         } elseif (
             $node instanceof Expression &&
             $node->expr instanceof FuncCall &&
-            $node->expr->name->parts[0] === "define"
+            $node->expr->name->parts[0] === 'define'
         ) {
             $this->isInDeclaration = true;
         } elseif ($node instanceof If_) {
@@ -200,7 +200,7 @@ public function leaveNode(Node $node, bool $preserveStack = false)
             || (
                 $node instanceof Expression &&
                 $node->expr instanceof FuncCall &&
-                $node->expr->name->parts[0] === "define"
+                $node->expr->name->parts[0] === 'define'
             )
         ) {
             // We're leaving one of these.
@@ -373,7 +373,7 @@ function (\PhpParser\Node\Const_ $const) {
             if (
                 $node instanceof Expression &&
                 $node->expr instanceof FuncCall &&
-                $node->expr->name->parts[0] === "define"
+                $node->expr->name->parts[0] === 'define'
             ) {
                 $fullyQualifiedName = $node->expr->args[0]->value->value;
 

test/NodeVisitorTest.php

@@ -102,7 +102,7 @@ private function normalize(string $string): string
         // Really should be testing AST output, this is just easier...
         $string = trim(
             // https://stackoverflow.com/questions/709669/how-do-i-remove-blank-lines-from-text-in-php
-            preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", $string)
+            preg_replace('/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/', '\n', $string)
         );
         $string = str_replace([
             'abstract public',