Add missing semicolon tokens to constructor and method rules.

Author: peterhuene

LANGUAGE.md

@@ -473,8 +473,8 @@ type-decl           ::= variant-decl | record-decl | flags-decl | enum-decl | ty
 item-type-decl      ::= resource-decl | type-decl
 resource-decl       ::= 'resource' id '{' resource-item* '}'
 resource-item       ::= constructor | method
-constructor         ::= 'constructor' param-list
-method              ::= id ':' 'static'? func-type
+constructor         ::= 'constructor' param-list ';'
+method              ::= id ':' 'static'? func-type ';'
 variant-decl        ::= 'variant' id '{' variant-cases '}'
 variant-cases       ::= variant-case (',' variant-case)* ','?
 variant-case        ::= id ('(' type ')')?