os: is_abs => is_abs_path

vlib/os/os.v

@@ -950,8 +950,8 @@ pub fn realpath(fpath string) string {
 	return string(fullpath)
 }
 
-// is_abs returns true if `path` is absolute.
-pub fn is_abs(path string) bool {
+// is_abs_path returns true if `path` is absolute.
+pub fn is_abs_path(path string) bool {
 	$if windows {
 		return path[0] == `/` || // incase we're in MingGW bash
 		(path[0].is_letter() && path[1] == `:`)

vlib/os/os_test.v

@@ -278,11 +278,11 @@ fn test_ext() {
 }
 
 fn test_is_abs() {
-	assert os.is_abs('/home/user') == true
-	assert os.is_abs('v/vlib') == false
+	assert os.is_abs_path('/home/user') == true
+	assert os.is_abs_path('v/vlib') == false
 
 	$if windows {
-		assert os.is_abs('C:\\Windows\\') == true
+		assert os.is_abs_path('C:\\Windows\\') == true
 	}
 }