refactor: adjusted test error message formatting

see: #18757 (comment)

Author: NickSdot

Zend/tests/property_hooks/readonly_class_property_backed.phpt

@@ -25,17 +25,17 @@ var_dump($t->prop);
 try {
     $t->set(43);
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 try {
     $t->prop = 43;
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 var_dump($t->prop);
 ?>
 --EXPECT--
 int(42)
-Cannot modify readonly property Test::$prop
-Cannot modify protected(set) readonly property Test::$prop from global scope
+Error: Cannot modify readonly property Test::$prop
+Error: Cannot modify protected(set) readonly property Test::$prop from global scope
 int(42)

Zend/tests/property_hooks/readonly_class_property_backed_promoted.phpt

@@ -23,17 +23,17 @@ var_dump($t->prop);
 try {
     $t->set(43);
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 try {
     $t->prop = 43;
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 var_dump($t->prop);
 ?>
 --EXPECT--
 int(42)
-Cannot modify readonly property Test::$prop
-Cannot modify protected(set) readonly property Test::$prop from global scope
+Error: Cannot modify readonly property Test::$prop
+Error: Cannot modify protected(set) readonly property Test::$prop from global scope
 int(42)

Zend/tests/property_hooks/readonly_property_backed.phpt

@@ -25,12 +25,12 @@ var_dump($t->prop);
 try {
     $t->set(43);
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 try {
     $t->prop = 43;
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 var_dump($t->prop);
 
@@ -79,8 +79,8 @@ final readonly class Foo3
 ?>
 --EXPECT--
 int(42)
-Cannot modify readonly property Test::$prop
-Cannot modify protected(set) readonly property Test::$prop from global scope
+Error: Cannot modify readonly property Test::$prop
+Error: Cannot modify protected(set) readonly property Test::$prop from global scope
 int(42)
 array(3) {
   [0]=>

Zend/tests/property_hooks/readonly_property_backed_inheritance_3.phpt

@@ -50,13 +50,13 @@ $t->getParentValue();
 try {
     $t->setAgain(); // cannot write, readonly
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 
 try {
     $t->prop = 43; // cannot write, visibility
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 
 ?>
@@ -93,5 +93,5 @@ In ChildClass::$prop::get():
     parent::$prop::get(): 911
     $this->prop: 911
     $this->prop * 2: 1822
-Cannot modify readonly property ChildClass::$prop
-Cannot modify protected(set) readonly property ChildClass::$prop from global scope
+Error: Cannot modify readonly property ChildClass::$prop
+Error: Cannot modify protected(set) readonly property ChildClass::$prop from global scope

Zend/tests/property_hooks/readonly_property_backed_promoted.phpt

@@ -23,17 +23,17 @@ var_dump($t->prop);
 try {
     $t->set(43);
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 try {
     $t->prop = 43;
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 var_dump($t->prop);
 ?>
 --EXPECT--
 int(42)
-Cannot modify readonly property Test::$prop
-Cannot modify protected(set) readonly property Test::$prop from global scope
+Error: Cannot modify readonly property Test::$prop
+Error: Cannot modify protected(set) readonly property Test::$prop from global scope
 int(42)

Zend/tests/property_hooks/readonly_rfc_example_lazy_product.phpt

@@ -77,7 +77,7 @@ var_dump($product);
 try {
     $categoryId->setValue($product, '420');
 } catch (Error $e) {
-    echo $e->getMessage(), "\n";
+    echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 
 ?>
@@ -102,4 +102,4 @@ object(LazyProduct)#2 (5) {
   ["categoryId":"LazyProduct":private]=>
   string(2) "42"
 }
-Cannot modify readonly property LazyProduct::$categoryId
+Error: Cannot modify readonly property LazyProduct::$categoryId

Zend/tests/property_hooks/readonly_rfc_example_validation.phpt

@@ -17,7 +17,7 @@ var_dump($one);
 try {
    $two = new PositivePoint(0,1);
 } catch (Error $e) {
-   echo $e->getMessage(), "\n";
+   echo $e::class, ': ', $e->getMessage(), PHP_EOL;
 }
 
 
@@ -29,4 +29,4 @@ object(PositivePoint)#1 (2) {
   ["y"]=>
   int(1)
 }
-Value must be greater 0
+Error: Value must be greater 0