Update .hhconfig

Author: ianhoffman

.hhconfig

@@ -4,4 +4,6 @@ allowed_decl_fixme_codes=1002,2001,2050,2053,2071,3012,3015,4030,4032,4035,4047,
 allowed_fixme_codes_strict=1002,2001,2011,2025,2049,2050,2053,2071,2105,3012,3015,4005,4006,4009,4011,4026,4027,4030,4032,4035,4047,4051,4053,4057,4060,4062,4063,4064,4070,4101,4104,4106,4107,4108,4110,4112,4117,4119,4128,4135,4138,4163,4165,4188,4193,4224,4240,4249,4250,4281,4297,4298,4318,4321,4323,4324,4337,4341,4343,4370,4371,4372,4390
 allowed_fixme_codes_partial=1002,2001,2011,2025,2049,2050,2053,2071,2105,3012,3015,4005,4006,4009,4011,4026,4027,4030,4032,4035,4047,4051,4053,4057,4060,4062,4063,4064,4070,4101,4104,4106,4107,4108,4110,4112,4117,4119,4128,4135,4138,4163,4165,4188,4193,4224,4240,4249,4250,4281,4297,4298,4318,4321,4323,4324,4337,4341,4343,4370,4371,4372,4390
 enable_xhp_class_modifier=true
-disable_xhp_element_mangling=true
+disable_xhp_element_mangling=true
+disallow_hash_comments=true
+enable_strict_string_concat_interp=true

src/Codegen/Constraints/UntypedBuilder.php

@@ -273,7 +273,7 @@ public function getMergedAllOfChecks(): ?TSchema {
             // Disgusting hack: let's just rewind the entire root directory
             if (Str\starts_with($prop['$ref'], '#')) {
               // Ref in the same file
-              $prop_root = $resolved_root_directory.'/'.$resolved_context->getCurrentRefFileName();
+              $prop_root = $resolved_root_directory.'/'.($resolved_context->getCurrentRefFileName() ?? '');
             } else {
               // External file containing ref
               $prop_root = $resolved_root_directory.'/';

src/Constraints/ArrayConstraint.php

@@ -26,7 +26,7 @@ public static function check(mixed $input, string $pointer, bool $coerce): vec<m
 
     $spec = TypeSpec\vec(TypeSpec\mixed());
     try {
-      # To allow for either PHP or hack arrays, we coerce to a vec here.
+      // To allow for either PHP or hack arrays, we coerce to a vec here.
       return $spec->coerceType($input);
     } catch (TypeCoercionException $e) {
       $error = shape(