Factor the generation of the (integral) tables bw yacc.c and lalr1.cc.

* data/lalr1.cc (b4_tables_map): Move to...
	* data/bison.m4: here.
	Update the comment for yytable during the flight.
	(b4_tables_declare, b4_tables_define): New.
	* data/lalr1.cc: Use them.
	* data/c.m4 (b4_table_define): New.
	* data/yacc.c: Use b4_tables_define instead of output the tables
	by hand.
	* tests/regression.at (Web2c Actions): Adjust the expected output,
	the order of the tables changed.

data/c.m4

@@ -169,6 +169,17 @@ m4_define([b4_int_type_for],
 m4_define([b4_null], [0])
 
 
+# b4_table_define(TABLE-NAME, CONTENT, COMMENT)
+# ---------------------------------------------
+# Define "yy<TABLE-NAME>" which contents is CONTENT.
+m4_define([b4_table_define],
+[m4_ifval([$3], [b4_c_comment([$3], [  ])
+])dnl
+static const b4_int_type_for([$2]) yy$1[[]] =
+{
+  $2
+};dnl
+])
 
 
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