Treat namespaced names as single token

Author: nikic

Zend/tests/attributes/019_variable_attribute_name.phpt

@@ -8,4 +8,4 @@ class A {}
 
 ?>
 --EXPECTF--
-Parse error: syntax error, unexpected '$x' (T_VARIABLE), expecting identifier (T_STRING) or static (T_STATIC) or namespace (T_NAMESPACE) or \\ (T_NS_SEPARATOR) in %s on line %d
+Parse error: syntax error, unexpected '$x' (T_VARIABLE) in %s on line %d

Zend/tests/bug43343.phpt

@@ -8,4 +8,4 @@ $foo = 'bar';
 var_dump(new namespace::$foo);
 ?>
 --EXPECTF--
-Parse error: %s error%sexpecting%sT_NS_SEPARATOR%sin %sbug43343.php on line 5
+Parse error: syntax error, unexpected 'namespace' (T_NAMESPACE) in %s on line %d

Zend/tests/bug55086.phpt

@@ -26,7 +26,7 @@ namespace N2 {
     echo $a->hello(), PHP_EOL;
     echo $a->foo(), PHP_EOL;
     try {
-    } catch(namespace \Foo $e)
+    } catch (namespace\Foo $e)
     {
     }
 }

Zend/tests/grammar/regression_010.phpt

@@ -5,8 +5,11 @@ Test to check regressions on T_IMPLEMENTS followed by a T_NS_SEPARATOR
 
 interface A{}
 
+// No longer considered legal in PHP 8.
 class B implements\A {}
 
 echo "Done", PHP_EOL;
---EXPECT--
-Done
+
+?>
+--EXPECTF--
+Parse error: syntax error, unexpected 'implements\A' (T_NAME_QUALIFIED), expecting '{' in %s on line %d

Zend/tests/namespace_name_namespace.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Cannot use "namespace" as namespace name, due to conflict with ns-relative names
+--FILE--
+<?php
+
+namespace NAMEspace;
+
+?>
+--EXPECTF--
+Fatal error: Cannot use 'NAMEspace' as namespace name in %s on line %d

Zend/tests/namespace_name_namespace_start.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Cannot use "namespace\xyz" as namespace name, due to conflict with ns-relative names
+--FILE--
+<?php
+
+namespace NAMEspace\xyz;
+
+?>
+--EXPECTF--
+Parse error: syntax error, unexpected 'NAMEspace\xyz' (T_NAME_RELATIVE), expecting '{' in %s on line %d

Zend/tests/namespace_name_reserved_keywords.phpt

@@ -0,0 +1,37 @@
+--TEST--
+Reserved keywords in namespace name
+--FILE--
+<?php
+
+namespace iter\fn {
+    function test() {
+        echo __FUNCTION__, "\n";
+    }
+}
+
+namespace fn {
+    function test() {
+        echo __FUNCTION__, "\n";
+    }
+}
+
+namespace self {
+    function test() {
+        echo __FUNCTION__, "\n";
+    }
+}
+
+namespace {
+    use iter\fn;
+    use function fn\test as test2;
+    use function self\test as test3;
+    fn\test();
+    test2();
+    test3();
+}
+
+?>
+--EXPECT--
+iter\fn\test
+fn\test
+self\test

Zend/tests/namespaced_name_whitespace.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Whitespace between namespace separators is no longer allowed
+--FILE--
+<?php
+
+Foo \ Bar \ Baz;
+
+?>
+--EXPECTF--
+Parse error: syntax error, unexpected '\' (T_NS_SEPARATOR) in %s on line %d

Zend/tests/ns_096.phpt

@@ -7,4 +7,4 @@ use Foo\Bar\{\Baz};
 
 ?>
 --EXPECTF--
-Parse error: syntax error, unexpected '\' (T_NS_SEPARATOR), expecting identifier (T_STRING) or function (T_FUNCTION) or const (T_CONST) in %s on line 3
+Parse error: syntax error, unexpected '\Baz' (T_NAME_FULLY_QUALIFIED), expecting identifier (T_STRING) or namespaced name (T_NAME_QUALIFIED) or function (T_FUNCTION) or const (T_CONST) in %s on line %d

Zend/tests/ns_trailing_comma_error_01.phpt

@@ -5,4 +5,4 @@ Group use declarations mustn't be empty
 use Baz\{};
 ?>
 --EXPECTF--
-Parse error: syntax error, unexpected '}', expecting identifier (T_STRING) or function (T_FUNCTION) or const (T_CONST) in %s on line %d
+Parse error: syntax error, unexpected '}', expecting identifier (T_STRING) or namespaced name (T_NAME_QUALIFIED) or function (T_FUNCTION) or const (T_CONST) in %s on line %d