[clang][docs] Fix typos in Options.td and regen ClangCommandLineReference.rst.

[fcambus]

Summary

Fix a couple of typos in Options.td and regenerate ClangCommandLineReference.rst.

[mgorny]

I suppose it's simple enough for me to count as second pair of eyes.

clang/docs/ClangCommandLineReference.rst

#include files may be "skipped" due to include guard optimization
              or #pragma once. This flag makes -H show also such includes.
 
 .. option:: -fsystem-module
 
 Build this module as a system module. Only used with -emit-module
 
 .. option:: -fuse-cuid=<arg>
 
-Method to generate ID's for compilation units for single source offloading languages CUDA and HIP: 'hash' (ID's generated by hashing file path and command line options) \| 'random' (ID's generated as random numbers) \| 'none' (disabled). Default is 'hash'. This option will be overriden by option '-cuid=\[ID\]' if it is specified.
+Method to generate ID's for compilation units for single source offloading languages CUDA and HIP: 'hash' (ID's generated by hashing file path and command line options) \| 'random' (ID's generated as random numbers) \| 'none' (disabled). Default is 'hash'. This option will be overridden by option '-cuid=\[ID\]' if it is specified.
 
 .. option:: --gcc-toolchain=<arg>, -gcc-toolchain <arg>
 
 Search for GCC installation in the specified directory on targets which commonly use GCC. The directory usually contains 'lib{,32,64}/gcc{,-cross}/$triple' and 'include'. If specified, sysroot is skipped for GCC detection. Note: executables (e.g. ld) used by the compiler are not overridden by the selected GCC installation
 
 .. option:: -gcodeview
 
 Generate CodeView debug information

 Generate verbose assembly output
 
 .. option:: -fvirtual-function-elimination, -fno-virtual-function-elimination
 
 Enables dead virtual function elimination optimization. Requires -flto=full
 
 .. option:: -fvisibility-dllexport=<arg>
 
-The visibility for dllexport defintions \[-fvisibility-from-dllstorageclass\]
+The visibility for dllexport definitions \[-fvisibility-from-dllstorageclass\]
 
 .. option:: -fvisibility-externs-dllimport=<arg>
 
 The visibility for dllimport external declarations \[-fvisibility-from-dllstorageclass\]
 
 .. option:: -fvisibility-externs-nodllstorageclass=<arg>
 
 The visibility for external declarations without an explicit DLL dllstorageclass \[-fvisibility-from-dllstorageclass\]
 
 .. option:: -fvisibility-from-dllstorageclass, -fno-visibility-from-dllstorageclass
 
-Set the visiblity of symbols in the generated code from their DLL storage class
+Set the visibility of symbols in the generated code from their DLL storage class
 
 .. option:: -fvisibility-global-new-delete-hidden
 
 Give global C++ operator new and delete declarations hidden visibility
 
 .. option:: -fvisibility-inlines-hidden, -fno-visibility-inlines-hidden
 
 Give inline C++ member functions hidden visibility by default

clang/include/clang/Driver/Options.td

HelpText<"An ID for compilation unit, which should be the same for the same "
            "source offloading languages CUDA and HIP so that they can be "
            "accessed by the host code of the same compilation unit.">,
   MarshallingInfoString<LangOpts<"CUID">>;
 def fuse_cuid_EQ : Joined<["-"], "fuse-cuid=">,
   HelpText<"Method to generate ID's for compilation units for single source "
            "offloading languages CUDA and HIP: 'hash' (ID's generated by hashing "
            "file path and command line options) | 'random' (ID's generated as "
            "random numbers) | 'none' (disabled). Default is 'hash'. This option "
-           "will be overriden by option '-cuid=[ID]' if it is specified." >;
+           "will be overridden by option '-cuid=[ID]' if it is specified." >;
 def libomptarget_amdgcn_bc_path_EQ : Joined<["--"], "libomptarget-amdgcn-bc-path=">, Group<i_Group>,
   HelpText<"Path to libomptarget-amdgcn bitcode library">;
 def libomptarget_nvptx_bc_path_EQ : Joined<["--"], "libomptarget-nvptx-bc-path=">, Group<i_Group>,
   HelpText<"Path to libomptarget-nvptx bitcode library">;
 def dD : Flag<["-"], "dD">, Group<d_Group>, Flags<[CC1Option]>,
   HelpText<"Print macro definitions in -E mode in addition to normal output">;
 def dI : Flag<["-"], "dI">, Group<d_Group>, Flags<[CC1Option]>,
   HelpText<"Print include directives in -E mode in addition to normal output">,
defm use_init_array : BoolFOption<"use-init-array",
   NegFlag<SetFalse, [CC1Option], "Use .ctors/.dtors instead of .init_array/.fini_array">,
   PosFlag<SetTrue>>;
 def fno_var_tracking : Flag<["-"], "fno-var-tracking">, Group<clang_ignored_f_Group>;
 def fverbose_asm : Flag<["-"], "fverbose-asm">, Group<f_Group>,
   HelpText<"Generate verbose assembly output">;
 def dA : Flag<["-"], "dA">, Alias<fverbose_asm>;
 defm visibility_from_dllstorageclass : BoolFOption<"visibility-from-dllstorageclass",
   LangOpts<"VisibilityFromDLLStorageClass">, DefaultFalse,
-  PosFlag<SetTrue, [CC1Option], "Set the visiblity of symbols in the generated code from their DLL storage class">,
+  PosFlag<SetTrue, [CC1Option], "Set the visibility of symbols in the generated code from their DLL storage class">,
   NegFlag<SetFalse>>;
 def fvisibility_dllexport_EQ : Joined<["-"], "fvisibility-dllexport=">, Group<f_Group>, Flags<[CC1Option]>,
-  HelpText<"The visibility for dllexport defintions [-fvisibility-from-dllstorageclass]">,
+  HelpText<"The visibility for dllexport definitions [-fvisibility-from-dllstorageclass]">,
   MarshallingInfoVisibility<LangOpts<"DLLExportVisibility">, "DefaultVisibility">,
   ShouldParseIf<fvisibility_from_dllstorageclass.KeyPath>;
 def fvisibility_nodllstorageclass_EQ : Joined<["-"], "fvisibility-nodllstorageclass=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"The visibility for defintiions without an explicit DLL export class [-fvisibility-from-dllstorageclass]">,
   MarshallingInfoVisibility<LangOpts<"NoDLLStorageClassVisibility">, "HiddenVisibility">,
   ShouldParseIf<fvisibility_from_dllstorageclass.KeyPath>;
 def fvisibility_externs_dllimport_EQ : Joined<["-"], "fvisibility-externs-dllimport=">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"The visibility for dllimport external declarations [-fvisibility-from-dllstorageclass]">,