Use literal types in lzma (#7095)

stdlib/lzma.pyi

@@ -10,34 +10,34 @@ _PathOrFile = Union[StrOrBytesPath, IO[bytes]]
 
 _FilterChain = Sequence[Mapping[str, Any]]
 
-FORMAT_AUTO: int
-FORMAT_XZ: int
-FORMAT_ALONE: int
-FORMAT_RAW: int
-CHECK_NONE: int
-CHECK_CRC32: int
-CHECK_CRC64: int
-CHECK_SHA256: int
-CHECK_ID_MAX: int
-CHECK_UNKNOWN: int
-FILTER_LZMA1: int
-FILTER_LZMA2: int
-FILTER_DELTA: int
-FILTER_X86: int
-FILTER_IA64: int
-FILTER_ARM: int
-FILTER_ARMTHUMB: int
-FILTER_SPARC: int
-FILTER_POWERPC: int
-MF_HC3: int
-MF_HC4: int
-MF_BT2: int
-MF_BT3: int
-MF_BT4: int
-MODE_FAST: int
-MODE_NORMAL: int
-PRESET_DEFAULT: int
-PRESET_EXTREME: int
+FORMAT_AUTO: Literal[0]
+FORMAT_XZ: Literal[1]
+FORMAT_ALONE: Literal[2]
+FORMAT_RAW: Literal[3]
+CHECK_NONE: Literal[0]
+CHECK_CRC32: Literal[1]
+CHECK_CRC64: Literal[4]
+CHECK_SHA256: Literal[10]
+CHECK_ID_MAX: Literal[15]
+CHECK_UNKNOWN: Literal[16]
+FILTER_LZMA1: int  # v big number
+FILTER_LZMA2: Literal[33]
+FILTER_DELTA: Literal[3]
+FILTER_X86: Literal[4]
+FILTER_IA64: Literal[6]
+FILTER_ARM: Literal[7]
+FILTER_ARMTHUMB: Literal[8]
+FILTER_SPARC: Literal[9]
+FILTER_POWERPC: Literal[5]
+MF_HC3: Literal[3]
+MF_HC4: Literal[4]
+MF_BT2: Literal[18]
+MF_BT3: Literal[19]
+MF_BT4: Literal[20]
+MODE_FAST: Literal[1]
+MODE_NORMAL: Literal[2]
+PRESET_DEFAULT: Literal[6]
+PRESET_EXTREME: int  # v big number
 
 # from _lzma.c
 @final