Merge branch 'alexis/libs/gtk'

Conflicts:
	tests/sav/nitstats_args1.sav

diff --cc lib/standard/string.nit
Simple merge

diff --cc tests/niti.skip
Simple merge

diff --cc tests/sav/nitstats_args1.res
index 9553a72,9553a72..0000000
deleted file mode 100644,100644
--- 1/tests/sav/nitstats_args1.res
--- 2/tests/sav/nitstats_args1.res
+++ /dev/null
@@@ -1,62 -1,62 +1,0 @@@
--*** STATS ***
--
----- Statistics of the model ---
--Number of modules: 1
--
--Number of classes: 7
--  Number of interface kind: 1 (14.27%)
--  Number of enum kind: 2 (28.57%)
--  Number of class kind: 4 (57.14%)
--
--Number of class definitions: 8
--Number of refined classes: 1 (14.27%)
--Average number of class refinments by classes: 0.14
--Average number of class refinments by refined classes: 1.0
--
--Number of properties: 19
--  Number of MAttribute: 3 (15.77%)
--  Number of MMethod: 16 (84.20%)
--
--Number of property definitions: 19
--Number of redefined properties: 0 (0.0%)
--Average number of property redefinitions by property: 0.0
--Average number of property redefinitions by redefined property: na
--
----- Explicit vs. Implicit Self ---
--Total number of self: 5
--Total number of implicit self: 4 (80.0%)
--
----- Sends on Nullable Reciever ---
--Total number of sends: 19
--Number of sends on a nullable receiver: 0 (0.0%)
--Number of buggy sends (cannot determine the type of the receiver): 0 (0.0%)
--
----- Statistics of the explitic static types ---
--Total number of explicit static types: 9
--Most used types: 
--  Int: 6
--  C: 1
--  B: 1
--  A: 1
--Distribution of type usage:
--  <=1: 3 (75.0% of types; 33.32% of usage)
--  <=8: 1 (25.0% of types; 66.65% of usage)
--
----- Construction of tables ---
--Number of runtime classes: 6 (excluding interfaces and abstract classes)
--Average number of composing class definition by runtime class: 3.0
--Total size of tables (classes and instances): 34 (not including stuff like info for subtyping or call-next-method)
--Average size of table by runtime class: 5.66
--Values never redefined: 34 (100.0%)
--
----- Type Analysis ---
--Number of live runtime types (instantied resolved type): 6
--      Sys Bool Int A B C
--Number of live method definitions: 14
--Number of live customized method definitions: 14
--Number of live runtime cast types (ie used in as and isa): 0
--      
--class_hierarchy.dot
--classdef_hierarchy.dot
--model.html
--module_hierarchy.dot

diff --cc tests/tests.sh
Simple merge