Akim Demaille 81a9580622 all: avoid useless comments and #lines ...

Currently we emit useless code for places where we might issue user
content, but there is none.  This commit avoids this.  Besides, some
of the comments looked like implementation details ("Copy the first
part of user declarations"), rather than made for the reader of the
result ("First part of user prologue").

On Bison's parse-gram.c we get:

    @@ -76,10 +76,6 @@
     #define yynerrs         gram_nerrs

    -/* Copy the first part of user declarations.  */
    -
    -#line 82 "src/parse-gram.c" /* yacc.c:339  */
    -

* data/bison.m4 (b4_define_user_code): Accept a comment to document
the section.
Do not emit any code if the content is empty.
Adjust callers to not emit the comment.
Do not
* data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, data/yacc.c:
Adjust.

2018-10-21 09:58:44 +02:00

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