parsers/source: Fix local interface support, write tests

Author: RyanSquared

fusion/core/parsers/source.lua

@@ -135,6 +135,7 @@ handlers['interface'] = function(self, node)
 		names[i] = {name = v, {type = "boolean", true}}
 	end
 	return self:transform({type="assignment";
+		is_local = node.is_local;
 		variable_list = {node.name};
 		expression_list = {{
 			type = "table";

spec/in/class.fuse

@@ -45,7 +45,9 @@ class ExampleThree extends ExampleToo {
 
 -- interface
 
-interface IScope {
+interface X {}
+
+local interface IScope {
 	close;
 }
 
@@ -63,7 +65,7 @@ class IO implements IScope {
 
 -- extension of implemented interface, inherits close()
 
-class File extends IO implements IScope {
+local class File extends IO implements IScope {
 	__new(...)=>
 		@file = io.open(...);
 }

spec/out/source/class.lua

@@ -40,7 +40,8 @@ ExampleThree = class({
 		ExampleToo.__init(self,a,b)
 	end);
 }, {extends = ExampleToo}, "ExampleThree")
-IScope = {
+X = {}
+local IScope = {
 	close = true;
 }
 IO = class({
@@ -53,7 +54,7 @@ IO = class({
 		self.file:close()
 	end);
 }, {implements = IScope}, "IO")
-File = class({
+local File = class({
 	__new = (function(self, ...)
 		self.file = io.open(...)
 	end);