Bug 1525069 - part 1 - add a node repack task for 32-bit Windows; r=nalexander

We don't use this in automation, but people who develop on AArch64
Windows will be happy we're providing Node for them.

taskcluster/ci/toolchain/node.yml

@@ -34,3 +34,13 @@ win64-node:
     run:
         arguments: ['win64']
         toolchain-artifact: public/build/node.tar.bz2
+
+win32-node:
+    treeherder:
+        symbol: TW32(node)
+    run:
+        arguments: ['win32']
+        toolchain-artifact: public/build/node.tar.bz2
+    run-on-projects:
+        - trunk
+        - try

taskcluster/scripts/misc/repack-node.sh

@@ -30,6 +30,15 @@ win64)
     REPACK_TAR_COMPRESSION_SWITCH=j
     REPACK_SUFFIX=tar.bz2
     ;;
+win32)
+    ARCH=win-x86
+    # From https://nodejs.org/dist/v8.11.3/SHASUMS256.txt.asc
+    SHA256SUM=9482a0ad7aa5cd964cbeb11a605377b5c5aae4eae952c838aecf079de6088dc6
+    SUFFIX=zip
+    UNARCHIVE=unzip
+    REPACK_TAR_COMPRESSION_SWITCH=j
+    REPACK_SUFFIX=tar.bz2
+    ;;
 esac
 
 VERSION=8.11.3