Fix test duplication, add more tests

Author: trowski

Zend/tests/indirect_call_string_001.phpt

@@ -16,7 +16,10 @@ namespace TestNamespace
             printf("Static method called with args: %s, %s, %s\n", $arg1, $arg2, $arg3);
         }
     }
+}
 
+namespace CallNamespace
+{
     // Test basic call using Class::method syntax.
     $callback = 'TestNamespace\TestClass::staticMethod';
     $callback();

Zend/tests/indirect_call_string_002.phpt

@@ -19,7 +19,7 @@ $callback = 'TestClass::';
 $callback();
 
 // Test array syntax with empty class name
-$callback = '::method';
+$callback = ['', 'method'];
 try {
     $callback();
 } catch (Error $e) {
@@ -49,6 +49,30 @@ try {
 } catch (Error $e) {
     echo $e->getMessage() . "\n";
 }
+
+// Test string ending in single colon
+$callback = 'Class:';
+try {
+    $callback();
+} catch (Error $e) {
+    echo $e->getMessage() . "\n";
+}
+
+// Test string beginning in single colon
+$callback = ':method';
+try {
+    $callback();
+} catch (Error $e) {
+    echo $e->getMessage() . "\n";
+}
+
+// Test single colon
+$callback = ':';
+try {
+    $callback();
+} catch (Error $e) {
+    echo $e->getMessage() . "\n";
+}
 ?>
 --EXPECT--
 string(0) ""
@@ -57,3 +81,6 @@ Class '' not found
 Class '' not found
 Class '' not found
 Class '' not found
+Call to undefined function Class:()
+Call to undefined function :method()
+Call to undefined function :()