[language] Add multiple assignments, assignment and definitions are now function calls

test/results/assignment tuple unpacking.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"3" {}"" |
+--- text ---
+| {}"" {}"4" {}"" |
+--- return ---
+()
+--# saved #--
+{}

test/results/constant variable.ans

@@ -1,7 +1,7 @@
 --# run #--
 --- error ---
 trying to change the value of constant a
-	↳ from test/tests/constant variable.ans:5:3 in assignment: a = 52
+	↳ from test/tests/constant variable.ans:5:3 in call: a = 52
 	↳ from ? in block: ::a = 3…
 --# saved #--
 {}

test/results/constrained variable assignement.ans

@@ -5,7 +5,7 @@
 | {}"" {}"type(12, \"kg\")" {}"" |
 --- error ---
 value check failure for weigh; 32 does not satisfy $(x) type(x) == t
-	↳ from test/tests/constrained variable assignement.ans:9:7 in assignment: weigh = 32
+	↳ from test/tests/constrained variable assignement.ans:9:7 in call: weigh = 32
 	↳ from ? in block: :weigh::is("kg") = type(5, "kg")…
 --# saved #--
 {}

test/results/define override function.ans

@@ -1,7 +1,7 @@
 --# run #--
 --- error ---
 a is already defined in the current scope
-	↳ from test/tests/define override function.ans:4:4 in definition: :a = 2
+	↳ from test/tests/define override function.ans:4:4 in call: :a = 2
 	↳ from ? in block: :a = ($() _)…
 --# saved #--
 {}

test/results/define override variable.ans

@@ -1,7 +1,7 @@
 --# run #--
 --- error ---
 can't add an overload variant to non-overloadable variable a defined in the same scope
-	↳ from test/tests/define override variable.ans:3:1 in definition: :a = ($() _)
+	↳ from test/tests/define override variable.ans:3:1 in call: :a = ($() _)
 	↳ from ? in block: :a = 2…
 --# saved #--
 {}

test/results/define override.ans

@@ -1,7 +1,7 @@
 --# run #--
 --- error ---
 a is already defined in the current scope
-	↳ from test/tests/define override.ans:3:4 in definition: :a = 2
+	↳ from test/tests/define override.ans:3:4 in call: :a = 2
 	↳ from ? in block: :a = 5…
 --# saved #--
 {}

test/results/defininion tuple unpacking.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"3" {}"" |
+--- text ---
+| {}"" {}"4" {}"" |
+--- return ---
+()
+--# saved #--
+{}

test/results/for invalid iterator.ans

@@ -10,7 +10,7 @@
 	• $(s::is struct) (from stdlib/for.ans:2:1):
 		value check failure for parameter s
 	↳ from stdlib/for.ans:3:18 in call: iter(var)
-	↳ from stdlib/for.ans:3:12 in definition: :iterator = iter(var)
+	↳ from stdlib/for.ans:3:12 in call: :iterator = iter(var)
 	↳ from stdlib/for.ans:2:1 in block: :iterator = iter(var)…
 	↳ from stdlib/for.ans:2:71 in call: _
 	↳ from test/tests/for invalid iterator.ans:1:4 in call: for(:x, 42)

test/results/function conflict.ans

@@ -1,7 +1,7 @@
 --# run #--
 --- error ---
 a function with parameters $(a, b) is already defined in the overload
-	↳ from test/tests/function conflict.ans:5:1 in definition: :f = ($(a, b) 0)
+	↳ from test/tests/function conflict.ans:5:1 in call: :f = ($(a, b) 0)
 	↳ from ? in block: :f = ($(a, b) 0)…
 --# saved #--
 {}

test/results/swap assignment.ans

@@ -0,0 +1,9 @@
+--# run #--
+--- text ---
+| {}"" {}"2" {}"" |
+--- text ---
+| {}"" {}"1" {}"" |
+--- return ---
+()
+--# saved #--
+{}

test/results/symbol alias constant.ans

@@ -6,7 +6,7 @@
 | {}"d=" {}"2" {}" (2)" |
 --- error ---
 trying to change the value of constant d
-	↳ from test/tests/symbol alias constant.ans:12:3 in assignment: d = 5
+	↳ from test/tests/symbol alias constant.ans:12:3 in call: d = 5
 	↳ from ? in block: :l = *[1, 2, 3]…
 --# saved #--
 {}

test/tests/assignment tuple unpacking.ans

@@ -0,0 +1,7 @@
+:a = 0
+:b = 1
+(a, b) = (3, 4)
+
+|{a}
+
+|{b}

test/tests/defininion tuple unpacking.ans

@@ -0,0 +1,5 @@
+(:a, :b) = (3, 4)
+
+|{a}
+
+|{b}

test/tests/swap assignment.ans

@@ -0,0 +1,8 @@
+:a = 1
+:b = 2
+
+(a, b) = (b, a)
+
+|{a}
+
+|{b}