userdiff: PHP: catch "abstract" and "final" functions

PHP permits functions to be defined like

       final public function foo() { }
       abstract protected function bar() { }

but our hunk header pattern does not recognize these decorations.
Add "final" and "abstract" to the list of function modifiers.

Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Javier Spagnoletti <phansys@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2 files changed, 14 insertions, 0 deletions

diff --git a/t/t4018/php-abstract-method b/t/t4018/php-abstract-method
new file mode 100644
index 0000000000..ce215df75a
--- /dev/null
+++ b/t/t4018/php-abstract-method
@@ -0,0 +1,7 @@
+abstract class Klass
+{
+    abstract public function RIGHT(): ?string
+    {
+        return 'ChangeMe';
+    }
+}
diff --git a/t/t4018/php-final-method b/t/t4018/php-final-method
new file mode 100644
index 0000000000..537fb8ad9a
--- /dev/null
+++ b/t/t4018/php-final-method
@@ -0,0 +1,7 @@
+class Klass
+{
+    final public function RIGHT(): string
+    {
+        return 'ChangeMe';
+    }
+}