Bug 1386588 - Rename the linux64-clang and linux64-gcc jobs to include a version number. r=gps

We're soon going to build multiple versions of clang and gcc for linux,
and we need to differentiate them. Furthermore, there is a need for the
base-toolchains builds to use a fixed version of clang and gcc. So
rename the clang and gcc toolchain jobs to include their version, add
aliases to satisfy all existing jobs, and adjust the base-toolchains
jobs to use the explicit version.


--HG--
rename : build/build-clang/clang-linux64.json => build/build-clang/clang-3.9-linux64.json
rename : taskcluster/scripts/misc/build-gcc-linux.sh => taskcluster/scripts/misc/build-gcc-4.9-linux.sh

taskcluster/ci/build/linux.yml

@@ -174,8 +174,8 @@ linux64-base-toolchains/opt:
         tooltool-downloads: public
         need-xvfb: true
     toolchains:
-        - linux64-clang
-        - linux64-gcc
+        - linux64-clang-3.9
+        - linux64-gcc-4.9
         - linux64-sccache
 
 linux64-base-toolchains/debug:
@@ -204,8 +204,8 @@ linux64-base-toolchains/debug:
         tooltool-downloads: public
         need-xvfb: true
     toolchains:
-        - linux64-clang
-        - linux64-gcc
+        - linux64-clang-3.9
+        - linux64-gcc-4.9
         - linux64-sccache
 
 linux/opt:

taskcluster/ci/toolchain/linux.yml

@@ -2,12 +2,12 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-linux64-clang:
-    description: "Clang toolchain build"
+linux64-clang-3.9:
+    description: "Clang 3.9 toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
-        symbol: TL(clang)
+        symbol: TL(clang3.9)
         tier: 1
     worker-type: aws-provisioner-v1/gecko-{level}-b-linux
     worker:
@@ -15,11 +15,12 @@ linux64-clang:
         max-run-time: 36000
     run:
         using: toolchain-script
-        script: build-clang-linux.sh
+        script: build-clang-3.9-linux.sh
         resources:
             - 'build/build-clang/build-clang.py'
-            - 'build/build-clang/clang-linux64.json'
+            - 'build/build-clang/clang-3.9-linux64.json'
             - 'taskcluster/scripts/misc/tooltool-download.sh'
+        toolchain-alias: linux64-clang
         toolchain-artifact: public/build/clang.tar.xz
     toolchains:
         - linux64-gcc
@@ -50,12 +51,12 @@ linux64-clang-tidy:
     toolchains:
         - linux64-gcc
 
-linux64-gcc:
-    description: "GCC toolchain build"
+linux64-gcc-4.9:
+    description: "GCC 4.9 toolchain build"
     treeherder:
         kind: build
         platform: toolchains/opt
-        symbol: TL(gcc)
+        symbol: TL(gcc4.9)
         tier: 1
     worker-type: aws-provisioner-v1/gecko-{level}-b-linux
     worker:
@@ -63,10 +64,11 @@ linux64-gcc:
         max-run-time: 36000
     run:
         using: toolchain-script
-        script: build-gcc-linux.sh
+        script: build-gcc-4.9-linux.sh
         resources:
             - 'build/unix/build-gcc/build-gcc.sh'
             - 'build/unix/build-gcc/checksums'
+        toolchain-alias: linux64-gcc
         toolchain-artifact: public/build/gcc.tar.xz
 
 linux64-binutils:

taskcluster/scripts/misc/build-clang-3.9-linux.sh

@@ -16,7 +16,7 @@ set +x
 
 cd build/build-clang
 # |mach python| sets up a virtualenv for us!
-../../mach python ./build-clang.py -c clang-linux64.json
+../../mach python ./build-clang.py -c clang-3.9-linux64.json
 
 set -x