[RFA]: Remove indent_level stuff.

[Neil Booth]

As discussed recently, this hasn't been turned on since 2.95.3.
Bootstrapped without regressions x86 Linux.  OK to commit?

Neil.

	* c-lex.c (indent_level): Remove.
	(cb_file_change, c_lex): Remove indent level handling.
	* c-lex.h (indent_level): Remove.
	* input.h (struct file_stack): Remove indent_level.
	* toplev.c (push_srcloc): Remove indent_level handling.
cp:
	* spew.c (yyungetc, snarf_block): Remove indent_level handling.

============================================================
Index: gcc/c-lex.c
--- gcc/c-lex.c	9 May 2002 22:48:32 -0000	1.177
+++ gcc/c-lex.c	23 May 2002 06:12:54 -0000
@@ -67,7 +67,6 @@ extern FILE *asm_out_file;
 /* Number of bytes in a wide character.  */
 #define WCHAR_BYTES (WCHAR_TYPE_SIZE / BITS_PER_UNIT)
 
-int indent_level;        /* Number of { minus number of }.  */
 int pending_lang_change; /* If we need to switch languages - C++ only */
 int c_header_level;	 /* depth in C headers - C++ only */
 
@@ -271,7 +270,6 @@ cb_file_change (pfile, new_map)
 
 	  lineno = included_at;
 	  push_srcloc (new_map->to_file, 1);
-	  input_file_stack->indent_level = indent_level;
 	  (*debug_hooks->start_source_file) (included_at, new_map->to_file);
 #ifndef NO_IMPLICIT_EXTERN_C
 	  if (c_header_level)
@@ -294,16 +292,6 @@ cb_file_change (pfile, new_map)
 	  --pending_lang_change;
 	}
 #endif
-#if 0
-      if (indent_level != input_file_stack->indent_level)
-	{
-	  warning_with_file_and_line
-	    (input_filename, lineno,
-	     "this file contains more '%c's than '%c's",
-	     indent_level > input_file_stack->indent_level ? '{' : '}',
-	     indent_level > input_file_stack->indent_level ? '}' : '{');
-	}
-#endif
       pop_srcloc ();
       
       (*debug_hooks->end_source_file) (to_line);
@@ -718,9 +706,6 @@ c_lex (value)
   *value = NULL_TREE;
   switch (tok->type)
     {
-    case CPP_OPEN_BRACE:  indent_level++;  break;
-    case CPP_CLOSE_BRACE: indent_level--;  break;
-
     /* Issue this error here, where we can get at tok->val.c.  */
     case CPP_OTHER:
       if (ISGRAPH (tok->val.c))
============================================================
Index: gcc/c-lex.h
--- gcc/c-lex.h	19 May 2002 21:53:52 -0000	1.31
+++ gcc/c-lex.h	23 May 2002 06:12:54 -0000
@@ -30,8 +30,6 @@ extern tree make_pointer_declarator PARA
 extern int c_lex PARAMS ((tree *));
 extern const char *init_c_lex PARAMS ((const char *));
 
-extern int indent_level;
-
 struct cpp_reader;
 extern struct cpp_reader* parse_in;
 
============================================================
Index: gcc/input.h
--- gcc/input.h	22 Aug 2001 14:35:19 -0000	1.7
+++ gcc/input.h	23 May 2002 06:12:54 -0000
@@ -36,7 +36,6 @@ struct file_stack
     const char *name;
     struct file_stack *next;
     int line;
-    int indent_level;
   };
 
 /* Stack of currently pending input files.
============================================================
Index: gcc/toplev.c
--- gcc/toplev.c	22 May 2002 05:40:10 -0000	1.630
+++ gcc/toplev.c	23 May 2002 06:13:13 -0000
@@ -2020,7 +2020,6 @@ push_srcloc (file, line)
   fs = (struct file_stack *) xmalloc (sizeof (struct file_stack));
   fs->name = input_filename = file;
   fs->line = lineno = line;
-  fs->indent_level = 0;
   fs->next = input_file_stack;
   input_file_stack = fs;
   input_file_stack_tick++;
============================================================
Index: gcc/cp/spew.c
--- gcc/cp/spew.c	26 Apr 2002 07:40:02 -0000	1.62
+++ gcc/cp/spew.c	23 May 2002 06:13:17 -0000
@@ -891,13 +891,6 @@ yyungetc (ch, rescan)
     {
       struct token fake;
 
-      /* If we're putting back a brace, undo the change in indent_level
-	 from the first time we saw it.  */
-      if (ch == '{')
-	indent_level--;
-      else if (ch == '}')
-	indent_level++;
-
       fake.yychar = ch;
       fake.yylval.ttype = 0;
       fake.lineno = lineno;
@@ -1085,8 +1078,7 @@ snarf_block (starting_file, starting_lin
   size_t point;
 
   if (yychar == '{')
-    /* We incremented indent_level in yylex; undo that.  */
-    indent_level--;
+    ;
   else if (yychar == '=')
     look_for_semicolon = 1;
   else if (yychar == ':' || yychar == RETURN_KEYWORD || yychar == TRY)