fix tests

src/test/resources/regressions/features/maps/maps-simple1.gobra

@@ -73,7 +73,8 @@ func test8() {
 	m := map[string]int { "hello": 5, "bye": 3 }
 	v, ok := m["hello"]
 	assert ok && v == 5
-	assert len(map[int]int{}) == 0
+	e := map[int]int{}
+	assert len(e) == 0
 }
 
 func test9() {

src/test/resources/regressions/features/slices/slice-literal-simple1.gobra

@@ -11,15 +11,17 @@ func test1() {
 }
 
 func test2() {
-	s@ := [][]int{[]int{1}, []int{2}}
+  s@ := [][]int{[]int{1}, []int{2}}
   assert len(s) == 2
 }
 
 func test3() {
-  assert len([]int { 1, 2, 3 }) == 3
-  assert cap([]int { 4, 5 }[:]) == 2
-  assert len([]int { 1, 2, 3 }[:2]) == 2
-  assert cap([]int { 4, 5 }[1:]) == 1
+  oneTwoThree := []int { 1, 2, 3 }
+  fourFive := []int { 4, 5 }
+  assert len(oneTwoThree) == 3
+  assert cap(fourFive[:]) == 2
+  assert len(oneTwoThree[:2]) == 2
+  assert cap(fourFive[1:]) == 1
 }
 
 func test4() {

src/test/resources/regressions/issues/000129-2.gobra

@@ -4,7 +4,8 @@
 package pkg
 
 func issue () {
-  assert []int{4: 20, 1: 10}[2] == 0
+  s := []int{4: 20, 1: 10}
+  assert s[2] == 0
 }
 
 func extra1() {

src/test/scala/viper/gobra/typing/ExprTypingUnitTests.scala

@@ -2843,7 +2843,7 @@ class ExprTypingUnitTests extends AnyFunSuite with Matchers with Inside {
     assert (frontend.wellDefExpr(expr)().valid)
   }
 
-  test("TypeChecker: should not let an array literal be classified as pure") {
+  test("TypeChecker: should classify an array literal containing only integer literals as pure") {
     val expr = PLiteral.array(
       PBoolType(),
       Vector(PIntLit(1), PIntLit(2))