Fix #77626: Persistence confusion in php_com_import_typelib()

We apply only the most minimal fix here, and will cater to the
unnecessary re-allocation for PHP-7.4.

We don't need to add a regression test, since bug39606.phpt and
bug77621.phpt already show the misbehavior.

Author: cmb69

NEWS

@@ -17,6 +17,7 @@ PHP                                                                        NEWS
 - COM:
   . Fixed bug #77621 (Already defined constants are not properly reported).
     (cmb)
+  . Fixed bug #77626 (Persistence confusion in php_com_import_typelib()). (cmb)
 
 - Mbstring:
   . Fixed bug #77514 (mb_ereg_replace() with trailing backslash adds null byte).

ext/com_dotnet/com_typeinfo.c

@@ -184,7 +184,7 @@ PHP_COM_DOTNET_API int php_com_import_typelib(ITypeLib *TL, int mode, int codepa
 				}
 
 				const_name = php_com_olestring_to_string(bstr_ids, &len, codepage);
-				c.name = zend_string_init(const_name, len, 1);
+				c.name = zend_string_init(const_name, len, mode & CONST_PERSISTENT);
 				// TODO: avoid reallocation???
 				efree(const_name);
 				if(c.name == NULL) {
@@ -200,7 +200,7 @@ PHP_COM_DOTNET_API int php_com_import_typelib(ITypeLib *TL, int mode, int codepa
 					if (COMG(autoreg_verbose) && !compare_function(&results, &value, exists)) {
 						php_error_docref(NULL, E_WARNING, "Type library constant %s is already defined", ZSTR_VAL(c.name));
 					}
-					zend_string_release_ex(c.name, 1);
+					zend_string_release_ex(c.name, mode & CONST_PERSISTENT);
 					ITypeInfo_ReleaseVarDesc(TypeInfo, pVarDesc);
 					continue;
 				}