add a repeat to the root parser rule (need to test the root more)

lib/parser/crystal.rb

@@ -25,6 +25,6 @@ module Parser
     include Conditional
     include Expression
 
-    rule(:root){ function_definition | expression | assignment | function_call }
+    rule(:root){ (function_definition | expression | assignment | function_call).repeat }
   end
 end

test/parser/test_function_call.rb

@@ -9,6 +9,7 @@ class TestFunctionCall < MiniTest::Test
     @parse_output = {:function_call => {:name => 'foo'},
              :argument_list    => [{:argument => {:integer => '42'} }] }
     @transform_output = Ast::FuncallExpression.new 'foo', [Ast::IntegerExpression.new(42)]
+    @parser = @parser.function_call
   end
 
   def test_function_call_multi

test/parser/test_function_definition.rb

@@ -16,6 +16,7 @@ HERE
     @transform_output = Ast::FunctionExpression.new('foo', 
                 [Ast::NameExpression.new('x')], 
                 [Ast::IntegerExpression.new(5)])
+    @parser = @parser.function_definition
   end
 
   def test_function_assignment
@@ -30,6 +31,7 @@ HERE
                 }
     @transform_output = Ast::FunctionExpression.new( "foo", [Ast::NameExpression.new("x")],
                            [Ast::AssignmentExpression.new( "abba", Ast::IntegerExpression.new(5) ) ])
+    @parser = @parser.function_definition
   end