gas: don't open-code LEX_*NAME

... except in read.c's definition of lex_type[], where readbility would
otherwise suffer.

gas/config/tc-bfin.h

@@ -44,7 +44,7 @@ extern bool bfin_start_label (char *);
 #define md_convert_frag(b,s,f)	as_fatal ("bfin convert_frag\n");
 
 /* Allow for [, ], etc.  */
-#define LEX_BR 6
+#define LEX_BR (LEX_BEGIN_NAME | LEX_END_NAME)
 
 #define TC_EOL_IN_INSN(PTR) (bfin_eol_in_insn(PTR) ? 1 : 0)
 extern bool bfin_eol_in_insn (char *);

gas/config/tc-dlx.h

@@ -29,7 +29,7 @@
 
 #define WORKING_DOT_WORD
 
-#define LEX_DOLLAR 1
+#define LEX_DOLLAR LEX_NAME
 
 #include "bit_fix.h"
 

gas/config/tc-msp430.h

@@ -99,7 +99,7 @@
 
 /* Support symbols like: C$$IO$$.  */
 #undef  LEX_DOLLAR
-#define LEX_DOLLAR 1
+#define LEX_DOLLAR LEX_NAME
 
 #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0
 /*   An `.lcomm' directive with no explicit alignment parameter will

gas/config/tc-ppc.h

@@ -149,7 +149,7 @@ struct ppc_tc_sy
 #define OBJ_COFF_MAX_AUXENTRIES 4
 
 /* Square and curly brackets are permitted in symbol names.  */
-#define LEX_BR 3
+#define LEX_BR (LEX_BEGIN_NAME | LEX_NAME)
 
 /* Canonicalize the symbol name.  */
 #define tc_canonicalize_symbol_name(name) ppc_canonicalize_symbol_name (name)

gas/config/te-interix.h

@@ -19,8 +19,8 @@
 
 #define TE_PE_DYN /* PE with dynamic linking (UNIX shared lib) support */
 #define TE_PE
-#define LEX_AT 1 /* can have @'s inside labels */
-#define LEX_QM 3 /* can have ?'s in or begin labels */
+#define LEX_AT LEX_NAME /* can have @'s inside labels */
+#define LEX_QM (LEX_BEGIN_NAME | LEX_NAME) /* can have ?'s in or begin labels */
 
 /* The PE format supports long section names.  */
 #define COFF_LONG_SECTION_NAMES

gas/read.c

@@ -285,7 +285,8 @@ read_begin (void)
   /* Use more.  FIXME-SOMEDAY.  */
 
   if (flag_mri)
-    lex_type['?'] = 3;
+    lex_type['?'] = LEX_BEGIN_NAME | LEX_NAME;
+
   stabs_begin ();
 
 #ifndef WORKING_DOT_WORD