Support for two-argument functions.

Should probably support n args instead. This is a quick hack.
Also, ';' is a slightly ugly argument separator.

parser.y

@@ -319,9 +319,20 @@ FuncDef:
                     $7);
   jv_free($2);
   jv_free($4);
+} |
+
+"def" IDENT '(' IDENT ';' IDENT ')' ':' Exp ';' {
+  $$ = gen_function(jv_string_value($2), 
+                    BLOCK(gen_op_block_unbound(CLOSURE_PARAM, jv_string_value($4)), 
+                          gen_op_block_unbound(CLOSURE_PARAM, jv_string_value($6))),
+                    $9);
+  jv_free($2);
+  jv_free($4);
+  jv_free($6);
 }
 
 
+
 String:
 QQSTRING_START { $<literal>$ = jv_string("text"); } QQString QQSTRING_END {
   $$ = $3;
@@ -414,6 +425,11 @@ IDENT '(' Exp ')' {
   $$ = gen_location(@1, $$);
   jv_free($1);
 } |
+IDENT '(' Exp ';' Exp ')' {
+  $$ = gen_call(jv_string_value($1), BLOCK(gen_lambda($3), gen_lambda($5)));
+  $$ = gen_location(@1, $$);
+  jv_free($1);
+} |
 '(' error ')' { $$ = gen_noop(); } |
 '[' error ']' { $$ = gen_noop(); } |
 Term '[' error ']' { $$ = $1; } |