Fix typos in the unit tests (comments/messages)

Detected by https://github.com/client9/misspell

Author: TysonAndre

tests/arrays/arrays.phpt

@@ -108,8 +108,8 @@ foreach($v as $e)	// only has 3 elements ([3], [6], and [7]), not 8 ([0]-[7])
 }
 echo "\n";
 
-echo "\$v[1] is >".$v[1]."<\n"; var_dump($v1[1]); // access non-existant element
-echo "\$v[4] is >".$v[4]."<\n"; var_dump($v1[4]); // access non-existant element
+echo "\$v[1] is >".$v[1]."<\n"; var_dump($v1[1]); // access non-existent element
+echo "\$v[4] is >".$v[4]."<\n"; var_dump($v1[4]); // access non-existent element
 
 $v[1] = TRUE;		// increases array to 4 elements
 $v[4] = 99;			// increases array to 5 elements

tests/basic_concepts/memory_model_and_handle_types.phpt

@@ -166,7 +166,7 @@ function g1(&$b)	// make $b alias whatever $a aliases
 	$b = new Point(5, 7);	// removes second alias from first point;
 							// then create first alias to second new point
 							// changing $b also changes $a as well, so $a's alias
-							// is also removed, alowing the destructor run
+							// is also removed, allowing the destructor run
 
 	echo "After 'new Point(5, 7)', \$b is $b\n";
 } // $b goes away, remove its alias from new point

tests/classes/cloning.phpt

@@ -58,7 +58,7 @@ echo "Point count = " . Point2::getPointCount() . "\n";
 var_dump($p4 = clone $p1);
 echo "Point count = " . Point2::getPointCount() . "\n";
 
-echo "================= use chained cloning in a class heirarchy =================\n";
+echo "================= use chained cloning in a class hierarchy =================\n";
 
 class Employee
 {
@@ -154,7 +154,7 @@ object(Point2)#6 (2) {
   int(0)
 }
 Point count = 4
-================= use chained cloning in a class heirarchy =================
+================= use chained cloning in a class hierarchy =================
 object(Manager)#7 (2) {
   ["level":"Manager":private]=>
   int(23)

tests/expressions/list/list_self_assign.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Test variable occuring on both LHS and RHS of list()
+Test variable occurring on both LHS and RHS of list()
 --FILE--
 <?php
 

tests/expressions/postfix_operators/subscripting.phpt

@@ -26,7 +26,7 @@ foreach ($v as $k => $e)
 	echo "key: ".$k.", value: ".$e."\n";
 }
 
-// try to access non-existant elements
+// try to access non-existent elements
 
 echo "[7] contains >".($v[7] == NULL ? "NULL" : "??")
 	."<, [12] contains >".($v[12] == NULL ? "NULL" : "??")."<\n";

tests/expressions/relational_operators/comparisons1.phpt

@@ -27,7 +27,7 @@ echo "\n";
 
 ///*
 // NULL operand with all kinds of operands, swapping them over to make
-// LHS/RHS order is irrelevent.
+// LHS/RHS order is irrelevant.
 
 $oper1 = array(NULL);
 $oper2 = array(0, 100, -3.4, TRUE, FALSE, NULL, "", "123", "abc", [], [10,2.3]);

tests/expressions/relational_operators/comparisons3.phpt

@@ -13,7 +13,7 @@ error_reporting(-1);
 
 ///*
 // Boolean operand with all kinds of operands, swapping them over to make
-// LHS/RHS order is irrelevent.
+// LHS/RHS order is irrelevant.
 
 $oper1 = array(TRUE, FALSE);
 $oper2 = array(0, 100, -3.4, TRUE, FALSE, NULL, "", "123", "abc", [], [10,2.3]);

tests/expressions/relational_operators/comparisons4.phpt

@@ -13,7 +13,7 @@ error_reporting(-1);
 
 ///*
 // Numeric strings with all kinds of operands, swapping them over to make
-// LHS/RHS order is irrelevent.
+// LHS/RHS order is irrelevant.
 
 $oper1 = array("10", "-5.1");
 $oper2 = array(0, 100, -3.4, TRUE, FALSE, NULL, "", "123", "abc", [], [10,2.3]);

tests/expressions/source_file_inclusion/include.phpt

@@ -17,7 +17,7 @@ echo "Inside file >" . __FILE__ . "< at line >" . __LINE__ .
 //var_dump(MY_MIN);
 //var_dump(MY_MAX);
 
-// Try to include a non-existant file
+// Try to include a non-existent file
 
 $fileName = 'unknown.inc';
 $inc = include $fileName;

tests/expressions/source_file_inclusion/include_once.phpt

@@ -11,7 +11,7 @@ PHP Spec test generated from ./expressions/source_file_inclusion/include_once.ph
 
 error_reporting(-1);
 
-// Try to include a non-existant file
+// Try to include a non-existent file
 
 $inc = include_once 'XXPositions.inc';
 var_dump($inc);