deprecate `import module`

vlib/builtin/array.v

@@ -3,13 +3,14 @@
 // that can be found in the LICENSE file.
 module builtin
 
-import strings
+import (
+	strings
+)
 
 pub struct array {
 pub:
-// Using a void pointer allows to implement arrays without generics and without generating
+	data         voidptr// Using a void pointer allows to implement arrays without generics and without generating
 // extra code for every type.
-	data         voidptr
 	len          int
 	cap          int
 	element_size int

vlib/builtin/float.v

@@ -2,12 +2,13 @@
 // Use of this source code is governed by an MIT license
 // that can be found in the LICENSE file.
 module builtin
-import strconv.ftoa
+
+import (
+	strconv.ftoa
+)
 
 #include <float.h>
-
 // ----- f64 to string functions -----
-
 // str return a f64 as string in scientific notation, auto display digits limit
 [inline]
 pub fn (d f64) str() string {
@@ -33,7 +34,6 @@ pub fn (x f64) strlong() string {
 }
 
 // ----- f32 to string functions -----
-
 // str return a f32 as string in scientific notation, auto display digits limit
 [inline]
 pub fn (d f32) str() string {
@@ -59,20 +59,26 @@ pub fn (x f32) strlong() string {
 }
 
 // ----- C functions -----
-
 [inline]
 fn f32_abs(a f32) f32 {
-	return if a < 0 { -a } else { a }
+	return if a < 0 {
+		-a
+	} else {
+		a
+	}
 }
 
 [inline]
 fn f64_abs(a f64) f64 {
-	return if a < 0 { -a } else { a }
+	return if a < 0 {
+		-a
+	} else {
+		a
+	}
 }
 
 // compare floats using C epsilon
 // ==
-
 [inline]
 pub fn (a f64) eq(b f64) bool {
 	return f64_abs(a - b) <= C.DBL_EPSILON
@@ -175,4 +181,3 @@ fn (a f64) gebit(b f64) bool {
 fn (a f32) gebit(b f32) bool {
 	return C.DEFAULT_GE(a, b)
 }
-

vlib/v/parser/parser.v

@@ -1496,6 +1496,7 @@ fn (p mut Parser) import_stmt() []ast.Import {
 		}
 		p.check(.rpar)
 	} else {
+		p.warn('`import module` has been deprecated, use `import ( module )` instead')
 		imports << p.parse_import()
 	}
 	return imports