Fix macro processing

The code:

printf("%d\n", CALL(CONST));

did not work because we did not check for TOK_PLCHLDR.

tccpp.c

@@ -3424,7 +3424,8 @@ static int macro_subst_tok(
             for(;;) {
                 do {
                     next_argstream(nested_list, NULL);
-                } while (is_space(tok) || TOK_LINEFEED == tok);
+                } while (tok == TOK_PLCHLDR || is_space(tok) ||
+			 TOK_LINEFEED == tok);
     empty_arg:
                 /* handle '()' case */
                 if (!args && !sa && tok == ')')

tests/tcctest.c

@@ -115,6 +115,9 @@ static int onetwothree = 123;
 
 #define MACRO_NOARGS()
 
+#define TEST_CALL(f, ...) f(__VA_ARGS__)
+#define TEST_CONST()      123
+
 #define AAA 3
 #undef AAA
 #define AAA 4
@@ -223,6 +226,8 @@ void macro_test(void)
 
     MACRO_NOARGS();
 
+    printf("%d\n", TEST_CALL(TEST_CONST));
+
     /* not strictly preprocessor, but we test it there */
 #ifdef C99_MACROS
     printf("__func__ = %s\n", __func__);