diff --git a/cmd/tools/vself.v b/cmd/tools/vself.v
index e741f20417..83f3160ffb 100644
--- a/cmd/tools/vself.v
+++ b/cmd/tools/vself.v
@@ -13,10 +13,10 @@ fn main() {
 	mut cmd := '$vexe -o v2 cmd/v'
 	if os.args.len >= 3 && os.args[2] == '-prod' {
 		cmd = '$vexe -o v2 -prod cmd/v'
-		println('V Self Compiling (-prod mode)...')
+		println('V self compiling (-prod mode)...')
 	}
 	else {
-		println('V Self Compiling...')
+		println('V self compiling...')
 	}
 
 	s2 := os.exec(cmd) or { panic(err) }
diff --git a/vlib/builtin/array_test.v b/vlib/builtin/array_test.v
index 58fbf65a56..d3056821a5 100644
--- a/vlib/builtin/array_test.v
+++ b/vlib/builtin/array_test.v
@@ -288,7 +288,7 @@ fn test_fixed() {
 	assert nums[3] == 0
 	nums[1] = 7
 	assert nums[1] == 7
-	nums2 := [N]int
+	nums2 := [5]int // N
 	assert nums2[N - 1] == 0
 }
 
@@ -298,6 +298,7 @@ fn modify(numbers mut []int) {
 
 fn test_mut_slice() {
 	mut n := [1, 2, 3]
+	//modify(mut n)
 	modify(mut n[..2])
 	assert n[0] == 777
 	modify(mut n[2..])
@@ -574,7 +575,7 @@ fn test_push_many_self() {
 fn test_for() {
 	nums := [1,2,3]
 	mut sum := 0
-	for num <- nums {
+	for num in nums {
 		sum += num
 	}
 	assert sum == 6
diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index 742fb1f463..e1e679e3e8 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -531,6 +531,9 @@ fn (c mut Checker) stmt(node ast.Stmt) {
 			c.assign_stmt(mut it)
 			c.expected_type = table.void_type
 		}
+		ast.Block {
+			c.stmts(it.stmts)
+		}
 		// ast.Attr {}
 		ast.CompIf {
 			// c.expr(it.cond)
diff --git a/vlib/v/gen/cgen.v b/vlib/v/gen/cgen.v
index e456aba354..cf1d30a5a6 100644
--- a/vlib/v/gen/cgen.v
+++ b/vlib/v/gen/cgen.v
@@ -277,6 +277,11 @@ fn (g mut Gen) stmt(node ast.Stmt) {
 		ast.Attr {
 			g.writeln('//[$it.name]')
 		}
+		ast.Block {
+			g.writeln('{')
+			g.stmts(it.stmts)
+			g.writeln('}')
+		}
 		ast.BranchStmt {
 			// continue or break
 			g.write(it.tok.kind.str())
@@ -952,7 +957,7 @@ fn (g mut Gen) expr(node ast.Expr) {
 			// TODO performance, detect `array` method differently
 			['repeat', 'sort_with_compare', 'free', 'push_many', 'trim',
 			//
-			'first', 'last', 'clone'] {
+			'first', 'last', 'clone', 'reverse'] {
 				// && rec_sym.name == 'array' {
 				// && rec_sym.name == 'array' && receiver_name.starts_with('array') {
 				// `array_byte_clone` => `array_clone`