Code cleaning in Matching.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16531 85f007b7-540e-0410-9357-904b9bb8a0f7
Adding a persistent stream data structure.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16532 85f007b7-540e-0410-9357-904b9bb8a0f7
Pushing lazy lists into Ltac. Now, the control flow is explicit
in Tacinterp, and it allows to remove a lot of entangled exception
matchings in MatchGoal. Performance should not be affected, because
the structures manipulated are somehow similar.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16533 85f007b7-540e-0410-9357-904b9bb8a0f7
Fixing debug of empty Ltac matching goal.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16534 85f007b7-540e-0410-9357-904b9bb8a0f7
Getting rid of LtacLocated exception transformer.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16535 85f007b7-540e-0410-9357-904b9bb8a0f7
Fixing warning of deprecated Argument Scopes.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16536 85f007b7-540e-0410-9357-904b9bb8a0f7
Setting "appcontext" as the default behaviour in Ltac matching.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16537 85f007b7-540e-0410-9357-904b9bb8a0f7
More clever implemenation for IStream.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16538 85f007b7-540e-0410-9357-904b9bb8a0f7
Documenting the "appcontext" by default.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16539 85f007b7-540e-0410-9357-904b9bb8a0f7
Make ist (interp_sign) available to TACTIC EXTEND code

In order to do so I had to move the data base of tactics to
tacinterp (from tacintern).

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16540 85f007b7-540e-0410-9357-904b9bb8a0f7
newring.ml4: interp constr arg at interp time (not parse time)

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16541 85f007b7-540e-0410-9357-904b9bb8a0f7
bwaa, a Pervasive.compare

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16542 85f007b7-540e-0410-9357-904b9bb8a0f7
comments in mli

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16543 85f007b7-540e-0410-9357-904b9bb8a0f7
Why not going inside fixpoint definition with appcontext ?

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16544 85f007b7-540e-0410-9357-904b9bb8a0f7
export Unification.abstract_list_all_with_dependencies

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16545 85f007b7-540e-0410-9357-904b9bb8a0f7
Do not compute fallback eagerly in Evarconv

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16546 85f007b7-540e-0410-9357-904b9bb8a0f7
Removing a useless location in ltac trace mechanism.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16547 85f007b7-540e-0410-9357-904b9bb8a0f7
Modest protection against "injection" and co raising anomaly in
-nois mode.  This is not perfect yet. E.g. "injection" used while
before eq is defined while compiling Logic.v would raise an anomaly.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16548 85f007b7-540e-0410-9357-904b9bb8a0f7
Fixing buggy backtracking in "intros * pat" with failing "pat".

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16549 85f007b7-540e-0410-9357-904b9bb8a0f7
Now interpreting introduction patterns [x1 .. xn] and (x1,..,xn) as an
"injection" tactic when applied on an equality statement. Moreover,
hypotheses are now entered in the left-to-right order.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16550 85f007b7-540e-0410-9357-904b9bb8a0f7