d-demangle.c (dlang_parse_arrayliteral): Correctly handle error result.

    * d-demangle.c (dlang_parse_arrayliteral): Correctly handle error result.
    * testsuite/d-demangle-expected: Add testcase.

From-SVN: r270697

libiberty/ChangeLog

 2019-04-30  Ben L  <bobsayshilol@live.co.uk>
 
+	* d-demangle.c (dlang_parse_arrayliteral): Correctly handle error result.
+	* testsuite/d-demangle-expected: Add testcase.
+
 	* d-demangle.c (dlang_parse_integer): Fix stack underflow.
 	* testsuite/d-demangle-expected: Add testcase.
 

libiberty/d-demangle.c

@@ -1191,6 +1191,9 @@ dlang_parse_arrayliteral (string *decl, const char *mangled)
   while (elements--)
     {
       mangled = dlang_value (decl, mangled, NULL, '\0');
+      if (mangled == NULL)
+	return NULL;
+
       if (elements != 0)
 	string_append (decl, ", ");
     }

libiberty/testsuite/d-demangle-expected

@@ -1310,3 +1310,7 @@ core.demangle.mangle!(void*() function).mangle(const(char)[], char[]).DotSplitte
 --format=dlang
 _D8__T2fnVa8888888888888_
 _D8__T2fnVa8888888888888_
+# Could crash
+--format=dlang
+_D5__T2fnVmA1A1A911111111D
+_D5__T2fnVmA1A1A911111111D