[language] flush literals are now --- instead of empty lines

Empty lines could lead to unexpected flushes, for example when calling another function where empty lines are used for code presentation.

test/tests/checkpoint merging mutable value.ans

@@ -20,5 +20,6 @@ merge branch!
 l!insert(5)
 
 |1,2,3,4,5: {l}
+---
 
 error("cancel merge")

test/tests/checkpoint merging variable.ans

@@ -20,5 +20,5 @@ merge branch!
 l = 4
 
 |4: {l}
-
+---
 error("cancel merge")

test/tests/choice block.ans

@@ -3,7 +3,7 @@
 	| no
 *| ne
 	| ok
-
+---
 choice = 1
 *| ho
 	| plop

test/tests/choice line interpolation with text event.ans

@@ -11,7 +11,7 @@
 *| No
 	|ko
 :@choice = 1
-
+---
 *| Other
 	|ok
 *| Use {move axis!} to move.

test/tests/choice preserve tags.ans

@@ -8,11 +8,11 @@
 f!
 *| c
 	()
-
+---
 "k":"v" #
 	f!
 	*| d
 		()
 	| e
-
+---
 | f

test/tests/choice with decorators.ans

@@ -4,31 +4,31 @@ if(1)
 *| b
 	| -> b
 :@choice = 1
-
+---
 if(1, $*| a)
 	| -> a
 *| b
 	| -> b
 choice = 2
-
+---
 if((), $*| a)
 	| -> a
 *| b
 	| -> b
 choice = 1
-
+---
 *| a
 	| -> a
 25 # *| b
 	| -> b
 choice = 2
-
+---
 12 # if((), $*| a)
 	| -> a
 3 # *| b
 	| -> b
 choice = 1
-
+---
 12 # if(1, $*| a)
 	| -> a
 3 # *| b

test/tests/closure define nested.ans

@@ -8,5 +8,5 @@
 f.:x = 42
 
 |{f.x}
-
+---
 |{f.y}

test/tests/constrained variable assignement.ans

@@ -5,7 +5,7 @@
 weigh = 12!type("kg")
 
 |{weigh}
-
+---
 weigh = 32
 
 |{weigh}

test/tests/exported variable nested.ans

@@ -8,5 +8,5 @@
 f!
 
 |{x}
-
+---
 |{z}

test/tests/function custom type dispatch error.ans

@@ -10,5 +10,5 @@
 a("pierre"!type(french name))
 
 a("idk"!type(esperanto name))
-
+---
 a(5!type("nope"))

test/tests/list assignement.ans

@@ -17,5 +17,5 @@ x(-1) = 12
 x(3) = 99
 
 |{x}
-
+---
 x(5) = 0

test/tests/list index.ans

@@ -7,5 +7,5 @@
 |{x(2)} == {x(-2)}
 
 |{x(3)} == {x(-1)}
-
+---
 |{x(-4)}

test/tests/loop decorator.ans

@@ -1,5 +1,5 @@
 :i = 0
 
 while($()(i += 1; i <= 10), $| {i} |!)
-
+---
 |{i}

test/tests/nested flush.ans

@@ -1,19 +1,19 @@
 if(1)
 	|a
-
+---
 |b
-
+---
 if(1)
 	|c
 |d
-
+---
 if(1)
 	|e
-
+---
 *| f
 	()
 :@choice = 1
-
+---
 if(1)
 	|g
 *| h

test/tests/resume from paragraph with nested choice.ans

@@ -11,7 +11,7 @@
 	*| b
 		|-> b
 	choice = 2
-
+	---
 	*| c
 		|-> c
 	choice=1

test/tests/symbol alias constant.ans

@@ -8,5 +8,5 @@
 :&d::constant = "{l(2)}"
 
 | d={c} (2)
-
+---
 d = 5

test/tests/text grouping.ans

@@ -1,38 +1,38 @@
 | A
 | A
 | A
-
+---
 "group": 1 #
 	| B
 	| B
 	| B
-
+---
 "group": 1 #
 	| C
 "group": 1 #
 	| C
 "group": 3 #
 	| D
-
+---
 "group": 1 #
 	| E
 "group": "j" #
 	| F
 "group": 1 #
 	| G
-
+---
 "group": 1 #
 	| H
 | I
 "group": 1 #
 	| J
-
+---
 "group": 1 #
 	| K
 | L
 "not group": 1 #
 	| L
-
+---
 | M
 "group": "j" #
 	| N

test/tests/text line interpolation with event flush.ans

@@ -1,15 +1,15 @@
 :$ jump button
 	1 #
 		| A
-
+	---
 	return!
 
 :$ move axis
 	1 #
 		| left
-
+	---
 	return(" joystick")
 
 | Press {jump button!} to jump.
-
+---
 | Use {move axis!} to move.

test/tests/text line interpolation with text event.ans

@@ -7,5 +7,5 @@
 	return(" joystick")
 
 | Press {jump button!} to jump.
-
+---
 | Use {move axis!} to move.