Fix bug #65322: compile time errors won't trigger auto loading

Also fixes duplicate bugs #54054 and #42098.

Furthermore this fixes incorrect error messages thrown from code
running inside an error handler when a compilation is in progress.
The error file and line are now correctly associated with the
file/line of the executor, rather than the compiler.

Author: nikic

NEWS

@@ -2,6 +2,9 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? 2013, PHP 5.4.21
 
+- Core:
+  . Fixed bug #65322 (compile time errors won't trigger auto loading). (Nikita)
+
 - CLI server:
   . Fixed bug #65633 (built-in server treat some http headers as
     case-sensitive). (Adam)

Zend/tests/bug65322.phpt

@@ -0,0 +1,22 @@
+--TEST--
+Bug #65322: compile time errors won't trigger auto loading
+--FILE--
+<?php
+
+spl_autoload_register(function($class) {
+    var_dump($class);
+    class B {}
+});
+
+set_error_handler(function($_, $msg, $file) {
+    var_dump($msg, $file);
+    new B;
+});
+
+eval('class A { function a() {} function __construct() {} }');
+
+?>
+--EXPECTF--
+string(50) "Redefining already defined constructor for class A"
+string(%d) "%s(%d) : eval()'d code"
+string(1) "B"

Zend/tests/errmsg_045.phpt

@@ -0,0 +1,18 @@
+--TEST--
+Error message in error handler during compilation
+--FILE--
+<?php
+
+set_error_handler(function($_, $msg, $file) {
+	var_dump($msg, $file);
+	echo $undefined;
+});
+
+eval('class A { function a() {} function __construct() {} }');
+
+?>
+--EXPECTF--
+string(50) "Redefining already defined constructor for class A"
+string(%d) "%s(%d) : eval()'d code"
+
+Notice: Undefined variable: undefined in %s on line %d

Zend/zend.c

@@ -1183,7 +1183,7 @@ ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */
 			 * such scripts recursivly, but some CG() variables may be
 			 * inconsistent. */
 
-			in_compilation = zend_is_compiling(TSRMLS_C);
+			in_compilation = CG(in_compilation);
 			if (in_compilation) {
 				saved_class_entry = CG(active_class_entry);
 				CG(active_class_entry) = NULL;
@@ -1195,6 +1195,7 @@ ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */
 				SAVE_STACK(declare_stack);
 				SAVE_STACK(list_stack);
 				SAVE_STACK(context_stack);
+				CG(in_compilation) = 0;
 			}
 
 			if (call_user_function_ex(CG(function_table), NULL, orig_user_error_handler, &retval, 5, params, 1, NULL TSRMLS_CC) == SUCCESS) {
@@ -1219,6 +1220,7 @@ ZEND_API void zend_error(int type, const char *format, ...) /* {{{ */
 				RESTORE_STACK(declare_stack);
 				RESTORE_STACK(list_stack);
 				RESTORE_STACK(context_stack);
+				CG(in_compilation) = 1;
 			}
 
 			if (!EG(user_error_handler)) {