Bug 1660340 - Switch builds to clang 11.0.0 rc2 r=froydnj

This changes most of our automation builds to clang 11.0.0 rc2.

Not included:
* code coverage builds, per bug 1660341
* mingw builds, which have traditionally been on their own update cadence, and in this case are blocked anyway by bug 1658632

This will leave some unused clang-9 task definitions. I intend to clean them up, but at a later date. For now I want to focus on making sure this update sticks, since patches like this have a tendency to bounce.

Differential Revision: https://phabricator.services.mozilla.com/D88313

taskcluster/ci/toolchain/cctools-port.yml

@@ -17,7 +17,6 @@ linux64-cctools-port-clang-9:
         symbol: TL(cctools)
     run:
         script: build-cctools-port.sh
-        toolchain-alias: linux64-cctools-port
         toolchain-artifact: public/build/cctools.tar.xz
         tooltool-downloads: internal
     fetches:
@@ -42,6 +41,7 @@ linux64-cctools-port-clang-11:
         symbol: TL(cctools-clang-11)
     run:
         script: build-cctools-port.sh
+        toolchain-alias: linux64-cctools-port
         toolchain-artifact: public/build/cctools.tar.xz
         tooltool-downloads: internal
     fetches:

taskcluster/ci/toolchain/clang.yml

@@ -62,7 +62,6 @@ linux64-clang-9:
             - 'build/build-clang/clang-linux64.json'
         resources:
             - 'build/build-clang/clang-linux64.json'
-        toolchain-alias: linux64-clang
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -132,7 +131,6 @@ linux64-clang-9-android-cross:
             - 'build/build-clang/clang-android.json'
         resources:
             - 'build/build-clang/clang-android.json'
-        toolchain-alias: linux64-clang-android-cross
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -157,7 +155,6 @@ linux64-clang-9-aarch64-cross:
             - 'build/build-clang/clang-linux64-aarch64-cross.json'
         resources:
             - 'build/build-clang/clang-linux64-aarch64-cross.json'
-        toolchain-alias: linux64-clang-aarch64-cross
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -175,7 +172,6 @@ linux64-clang-9-macosx-cross:
         max-run-time: 600
     run:
         script: repack-clang-linux-macosx-cross.sh
-        toolchain-alias: linux64-clang-macosx-cross
         toolchain-artifact: public/build/clang.tar.zst
     dependencies:
         macosx64-clang-9: toolchain-macosx64-clang-9
@@ -196,7 +192,6 @@ linux64-clang-9-win-cross:
         max-run-time: 600
     run:
         script: repack-clang-linux-win-cross.sh
-        toolchain-alias: linux64-clang-win-cross
         toolchain-artifact: public/build/clang.tar.zst
     dependencies:
         win64-clang-cl-9-2stage: toolchain-win64-clang-cl-9-2stage
@@ -251,7 +246,6 @@ macosx64-clang-9:
         resources:
             - 'build/build-clang/clang-macosx64.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
-        toolchain-alias: macosx64-clang
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -282,7 +276,6 @@ win64-clang-cl-9:
         resources:
             - 'build/build-clang/clang-win64.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
-        toolchain-alias: win64-clang-cl
         toolchain-artifact: public/build/clang.tar.zst
         tooltool-downloads: internal
     fetches:
@@ -306,7 +299,6 @@ win64-clang-cl-9-2stage:
         resources:
             - 'build/build-clang/clang-win64-2stage.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
-        toolchain-alias: win64-clang-cl-2stage
         toolchain-artifact: public/build/clang.tar.zst
         tooltool-downloads: internal
     fetches:
@@ -329,6 +321,7 @@ linux64-clang-11:
             - 'build/build-clang/clang-11-linux64.json'
         resources:
             - 'build/build-clang/clang-11-linux64.json'
+        toolchain-alias: linux64-clang
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -349,6 +342,7 @@ linux64-clang-11-android-cross:
             - 'build/build-clang/clang-11-android.json'
         resources:
             - 'build/build-clang/clang-11-android.json'
+        toolchain-alias: linux64-clang-android-cross
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -373,6 +367,7 @@ linux64-clang-11-aarch64-cross:
             - 'build/build-clang/clang-11-linux64-aarch64-cross.json'
         resources:
             - 'build/build-clang/clang-11-linux64-aarch64-cross.json'
+        toolchain-alias: linux64-clang-aarch64-cross
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -390,6 +385,7 @@ linux64-clang-11-macosx-cross:
         max-run-time: 600
     run:
         script: repack-clang-linux-macosx-cross.sh
+        toolchain-alias: linux64-clang-macosx-cross
         toolchain-artifact: public/build/clang.tar.zst
     dependencies:
         macosx64-clang-11: toolchain-macosx64-clang-11
@@ -410,6 +406,7 @@ linux64-clang-11-win-cross:
         max-run-time: 600
     run:
         script: repack-clang-linux-win-cross.sh
+        toolchain-alias: linux64-clang-win-cross
         toolchain-artifact: public/build/clang.tar.zst
     dependencies:
         win64-clang-cl-11-2stage: toolchain-win64-clang-cl-11-2stage
@@ -443,6 +440,7 @@ macosx64-clang-11:
         resources:
             - 'build/build-clang/clang-11-macosx64.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
+        toolchain-alias: macosx64-clang
         toolchain-artifact: public/build/clang.tar.zst
     fetches:
         fetch:
@@ -479,6 +477,7 @@ win64-clang-cl-11:
         resources:
             - 'build/build-clang/clang-11-win64.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
+        toolchain-alias: win64-clang-cl
         toolchain-artifact: public/build/clang.tar.zst
         tooltool-downloads: internal
     fetches:
@@ -502,6 +501,7 @@ win64-clang-cl-11-2stage:
         resources:
             - 'build/build-clang/clang-11-win64-2stage.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
+        toolchain-alias: win64-clang-cl-2stage
         toolchain-artifact: public/build/clang.tar.zst
         tooltool-downloads: internal
     fetches:

taskcluster/ci/toolchain/misc.yml

@@ -151,7 +151,6 @@ wasi-sysroot-9:
         script: build-wasi-sysroot.sh
         sparse-profile: null
         toolchain-artifact: public/build/wasi-sysroot.tar.xz
-        toolchain-alias: wasi-sysroot
     fetches:
         fetch:
             - clang-9
@@ -170,6 +169,7 @@ wasi-sysroot-11:
     run:
         script: build-wasi-sysroot.sh
         sparse-profile: null
+        toolchain-alias: wasi-sysroot
         toolchain-artifact: public/build/wasi-sysroot.tar.xz
     fetches:
         fetch: