[Kernels][Stdlib] Reformat the imports, NFC (#35086)

Reformat all the imports after moving everything around.

modular-orig-commit: ec83d89a7b90ad64e1c61cd42d1104e246be8637

stdlib/src/builtin/range.mojo

@@ -18,7 +18,6 @@ These are Mojo built-ins, so you don't need to import them.
 
 from python.object import PythonObject
 
-
 # ===----------------------------------------------------------------------=== #
 # Utilities
 # ===----------------------------------------------------------------------=== #

stdlib/src/builtin/simd.mojo

@@ -15,14 +15,15 @@
 These are Mojo built-ins, so you don't need to import them.
 """
 
-from utils._numerics import FPUtils
-from utils._numerics import isnan as _isnan, nan as _nan
 from sys import llvm_intrinsic
 from sys.info import has_neon, is_x86, simdwidthof
 
 from builtin.hash import _hash_simd
 from memory.unsafe import bitcast
 
+from utils._numerics import FPUtils
+from utils._numerics import isnan as _isnan
+from utils._numerics import nan as _nan
 from utils._visualizers import lldb_formatter_wrapping_type
 from utils.static_tuple import StaticTuple
 

stdlib/src/builtin/string.mojo

@@ -17,8 +17,8 @@ These are Mojo built-ins, so you don't need to import them.
 
 from collections import List
 from collections.dict import KeyElement
-from sys.info import bitwidthof
 from sys import llvm_intrinsic
+from sys.info import bitwidthof
 
 from memory.anypointer import AnyPointer
 from memory.memory import memcmp, memcpy

stdlib/src/os/atomic.mojo

@@ -20,7 +20,6 @@ from os.atomic import Atomic
 """
 
 from builtin.dtype import _integral_type_of
-
 from memory.unsafe import Pointer, bitcast
 
 

stdlib/src/time/time.mojo

@@ -19,10 +19,10 @@ from time import now
 ```
 """
 
-from builtin.simd import _floor
 from sys import external_call
 from sys.info import os_is_linux, os_is_windows
 
+from builtin.simd import _floor
 from memory.unsafe import Pointer
 
 # ===----------------------------------------------------------------------===#

stdlib/src/utils/variant.mojo

@@ -46,7 +46,6 @@ from memory.unsafe import _LITRef, emplace_ref_unsafe
 from utils.loop import unroll
 from utils.static_tuple import StaticTuple
 
-
 # ===----------------------------------------------------------------------=== #
 # Utilities
 # ===----------------------------------------------------------------------=== #

stdlib/test/test_utils/test_utils.mojo

@@ -4,9 +4,10 @@
 #
 # ===----------------------------------------------------------------------=== #
 
-from builtin.simd import _simd_apply
 from sys import external_call
 
+from builtin.simd import _simd_apply
+
 
 @always_inline
 fn libm_call[

stdlib/test/utils/test_list.mojo

@@ -5,10 +5,10 @@
 # ===----------------------------------------------------------------------=== #
 # RUN: %mojo -debug-level full %s | FileCheck %s
 
+from buffer.list import Dim, DimList
 from testing import *
 
 from utils.index import StaticIntTuple
-from buffer.list import Dim, DimList
 
 
 # CHECK-LABEL: test_dim_list