roll: pigweed, pw_toolchain: pw_build: Specify -Wshadow-all for Clang

GCC's `-Wshadow` is stricter than Clang's. Use `-Wshadow-all` in
internal Clang builds. Disable it in a few places as needed.

Original-Fixes: b/346999138
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/216033

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: c6e858e6049da1f..16e6c7a906f3d8d
Roller-URL: https://ci.chromium.org/b/8738514149586623217
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I2ad2f81ffe22cf6dcda927b98eb220a04b2f2f40
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/232072
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
diff --git a/MODULE.bazel b/MODULE.bazel
index 0ecd6da..2f3760b 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -48,8 +48,8 @@
     module_name = "pigweed",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-08-26.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8738514548351833825.
-    commit = "c6e858e6049da1f5de6a91240277aec1e4770f0e",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8738514149586623217.
+    commit = "16e6c7a906f3d8d7c7dab99d5ceb4f3e7ae1843d",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
 )
 
@@ -57,8 +57,8 @@
     module_name = "pw_toolchain",
     # ROLL: Warning: this entry is automatically updated.
     # ROLL: Last updated 2024-08-26.
-    # ROLL: By https://cr-buildbucket.appspot.com/build/8738514548351833825.
-    commit = "c6e858e6049da1f5de6a91240277aec1e4770f0e",
+    # ROLL: By https://cr-buildbucket.appspot.com/build/8738514149586623217.
+    commit = "16e6c7a906f3d8d7c7dab99d5ceb4f3e7ae1843d",
     remote = "https://pigweed.googlesource.com/pigweed/pigweed",
     strip_prefix = "pw_toolchain_bazel",
 )