[stdlib] Use InlineArray over StaticTuple in os module

Replace uses of `StaticTuple` with `InlineArray`.  Soon, `StaticTuple`
will be deprecated.  This requires removing some reg-passable annotations on
types since `StaticTuple` was register passable trivial, but `InlineArray` is of
course not.

As a bonus, this should speed up compile times a little bit since in some cases,
we were using a `StaticTuple` of size `1024` which would not compile very fast.
See #2425.

MODULAR_ORIG_COMMIT_REV_ID: 004b5334e3bd78a8a8054d6762501efc557df716

stdlib/src/os/_linux_aarch64.mojo

@@ -13,7 +13,7 @@
 
 from time.time import _CTimeSpec
 
-from utils import StaticTuple
+from utils import InlineArray
 
 from .fstat import stat_result
 
@@ -29,7 +29,6 @@ alias blksize_t = Int32
 
 
 @value
-@register_passable("trivial")
 struct _c_stat(Stringable):
     var st_dev: dev_t  #  ID of device containing file
     var st_ino: Int64  # File serial number
@@ -47,7 +46,7 @@ struct _c_stat(Stringable):
     var st_mtimespec: _CTimeSpec  # time of last data modification
     var st_ctimespec: _CTimeSpec  # time of last status change
     var st_birthtimespec: _CTimeSpec  # time of file creation(birth)
-    var unused: StaticTuple[Int64, 2]  # RESERVED: DO NOT USE!
+    var unused: InlineArray[Int64, 2]  # RESERVED: DO NOT USE!
 
     fn __init__(inout self):
         self.st_dev = 0
@@ -66,7 +65,7 @@ struct _c_stat(Stringable):
         self.st_mtimespec = _CTimeSpec()
         self.st_ctimespec = _CTimeSpec()
         self.st_birthtimespec = _CTimeSpec()
-        self.unused = StaticTuple[Int64, 2](0, 0)
+        self.unused = InlineArray[Int64, 2](0, 0)
 
     fn __str__(self) -> String:
         var res = String("{\n")

stdlib/src/os/_linux_x86.mojo

@@ -13,7 +13,7 @@
 
 from time.time import _CTimeSpec
 
-from utils.index import StaticTuple
+from utils.index import InlineArray
 
 from .fstat import stat_result
 
@@ -29,7 +29,6 @@ alias blksize_t = Int64
 
 
 @value
-@register_passable("trivial")
 struct _c_stat(Stringable):
     var st_dev: dev_t  #  ID of device containing file
     var st_ino: Int64  # File serial number
@@ -46,7 +45,7 @@ struct _c_stat(Stringable):
     var st_mtimespec: _CTimeSpec  # time of last data modification
     var st_ctimespec: _CTimeSpec  # time of last status change
     var st_birthtimespec: _CTimeSpec  # time of file creation(birth)
-    var unused: StaticTuple[Int64, 3]  # RESERVED: DO NOT USE!
+    var unused: InlineArray[Int64, 3]  # RESERVED: DO NOT USE!
 
     fn __init__(inout self):
         self.st_dev = 0
@@ -64,7 +63,7 @@ struct _c_stat(Stringable):
         self.st_mtimespec = _CTimeSpec()
         self.st_ctimespec = _CTimeSpec()
         self.st_birthtimespec = _CTimeSpec()
-        self.unused = StaticTuple[Int64, 3](0, 0, 0)
+        self.unused = InlineArray[Int64, 3](0, 0, 0)
 
     fn __str__(self) -> String:
         var res = String("{\n")

stdlib/src/os/_macos.mojo

@@ -13,7 +13,7 @@
 
 from time.time import _CTimeSpec
 
-from utils import StaticTuple
+from utils import InlineArray
 
 from .fstat import stat_result
 
@@ -30,7 +30,6 @@ alias blksize_t = Int32
 
 
 @value
-@register_passable("trivial")
 struct _c_stat(Stringable):
     var st_dev: dev_t  #  ID of device containing file
     var st_mode: mode_t  # Mode of file
@@ -49,7 +48,7 @@ struct _c_stat(Stringable):
     var st_flags: UInt32  # user defined flags for file
     var st_gen: UInt32  # file generation number
     var st_lspare: Int32  # RESERVED: DO NOT USE!
-    var st_qspare: StaticTuple[Int64, 2]  # RESERVED: DO NOT USE!
+    var st_qspare: InlineArray[Int64, 2]  # RESERVED: DO NOT USE!
 
     fn __init__(inout self):
         self.st_dev = 0
@@ -69,7 +68,7 @@ struct _c_stat(Stringable):
         self.st_flags = 0
         self.st_gen = 0
         self.st_lspare = 0
-        self.st_qspare = StaticTuple[Int64, 2](0, 0)
+        self.st_qspare = InlineArray[Int64, 2](0, 0)
 
     fn __str__(self) -> String:
         var res = String("{\n")

stdlib/src/os/os.mojo

@@ -27,7 +27,7 @@ from memory import (
 )
 from memory.unsafe_pointer import move_from_pointee
 
-from utils import StringRef, StaticTuple
+from utils import StringRef, InlineArray
 
 from .path import isdir
 from .pathlike import PathLike
@@ -52,7 +52,6 @@ alias SEEK_END: UInt8 = 2
 
 
 @value
-@register_passable("trivial")
 struct _dirent_linux:
     alias MAX_NAME_SIZE = 256
     var d_ino: Int64
@@ -63,12 +62,11 @@ struct _dirent_linux:
     """Length of the record."""
     var d_type: Int8
     """Type of file."""
-    var name: StaticTuple[Int8, Self.MAX_NAME_SIZE]
+    var name: InlineArray[Int8, Self.MAX_NAME_SIZE]
     """Name of entry."""
 
 
 @value
-@register_passable("trivial")
 struct _dirent_macos:
     alias MAX_NAME_SIZE = 1024
     var d_ino: Int64
@@ -81,7 +79,7 @@ struct _dirent_macos:
     """Length of the name."""
     var d_type: Int8
     """Type of file."""
-    var name: StaticTuple[Int8, Self.MAX_NAME_SIZE]
+    var name: InlineArray[Int8, Self.MAX_NAME_SIZE]
     """Name of entry."""