Roll GN from ad9e442d..6feb5599

    6feb5599 [format] Sort lists based on suffix match
    c630f1ce Export rustflags in the IDE JSON format
    e87aa228 Ignore SIGTRAP in child process on macOS
    fe36c7c1 Create a new target type for Rust procedural macro
    eb18f84f Delete the default Token assignment opoerator
    171ab91c Support for RISC-V
    9a9aff09 Remove needless build_settings.h includes.
    b0400c9e Don't include windows.h in semaphore.h
    5649cccd Stop using iostream.
    de542971 gen.py: Stop writing rule cc, GN has no C code.
    47e15b76 Delete some unused code in src/base.
    776bbfd9 Add syntax highlighting for string_{join,split}
    6e5ba2e7 string_split(): Add tests for edge cases
    6ae63300 Add string_join() and string_split() builtins
    84843c57 Use git push instead of git cl
    45611e33 Update reference.md
    93b527c0 Add unit tests for assert() builtin
    b0e6146a Update documentation on how to configure and build the simple_build example
    4872f08f Change args.gn to reference `gn help buildargs`
    a0a58ab2 Enable -Wall -Wextra compiler warnings on non-Win too.
    1ec42e7f [format] Convert invalid whitespace to space when loading for format
    5b4af69f Fix problems pointed out by building with clang-cl.
    99d23637 win: Only use ICF and LTO if explicitly opted in.
    160387be win: Don't use rsp files when linking gn either.
    3f6100c9 Move source files into src/, and move tools/gn/misc to the toplevel.
    3e42596a win: Don't use rsp files when compiling gn.
    df79acfb Documentation fix for Rust example
    16d0abf5 Handle metadata walk_keys relative to the target directory
    a3345c9b Better user error detection in assert()
    d11184e1 Typos.  Fix comments.
    91420ba0 Fixed typos and clarified generated_file docs.
    2020e304 Allow analyze reading from stdin and writing to stdout.
    189ddf35 Switch Semaphore to use dispatch_semaphore_t on Mac.
    7617b59f Provide separate Rust tools for different output types
    bbc9dd04 Doc clarification.
    6c7fcc3d Add support for building on Haiku.
    d68b623f Don't report error for non-existent keys in not_needed
    546edf82 Don't link Rust libraries and proc macros to C targets
    7f603814 Support non-Rust libs and lib_dirs for Rust targets
    add1bb11 Drop edition variable from Rust support
    f3c7676f vim: Allow override of default location for gn binary
    d034be3a Remove Bind and Callback.
    572ba24b Remove some base C++ wrappers.
    bdde2c25 Convert typedef to using.

Change-Id: I4ee7a42d64f857df8818413344c8fff030f7626d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1963377
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#724480}

DEPS

@@ -337,7 +337,7 @@ vars = {
   # revisions.
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:ad9e442d92dcd9ee73a557428cfc336b55cbd533',
+  'gn_version': 'git_revision:6feb55993083dfd27b93da195c8a82a3a9529848',
 
   # Also, if you change these, update buildtools/DEPS too. Also update the
   # libc++ svn_revision in //buildtools/deps_revisions.gni.

buildtools/DEPS

@@ -14,7 +14,7 @@ vars = {
   #
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:ad9e442d92dcd9ee73a557428cfc336b55cbd533',
+  'gn_version': 'git_revision:6feb55993083dfd27b93da195c8a82a3a9529848',
 
   # When changing these, also update the svn revisions in deps_revisions.gni
   'clang_format_revision': '96636aa0e9f047f17447f2d45a094d0b59ed7917',