bug #3264 Optimize context access on PHP 7.4 (rob006)

This PR was merged into the 1.x branch.

Discussion
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Optimize context access on PHP 7.4

`700400` means PHP 70.4

refs #2985

Commits
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e3c20d3 Fix optimize context access on PHP 7.4

src/Node/Expression/NameExpression.php

@@ -36,7 +36,7 @@ public function compile(Compiler $compiler)
         if ($this->getAttribute('is_defined_test')) {
             if ($this->isSpecial()) {
                 $compiler->repr(true);
-            } elseif (\PHP_VERSION_ID >= 700400) {
+            } elseif (\PHP_VERSION_ID >= 70400) {
                 $compiler
                     ->raw('array_key_exists(')
                     ->string($name)