[GR-16469] [GR-19513] [GR-14965] Update Sulong to use the LLVM 9 toolchain.

PullRequest: truffleruby/1213

Author: eregon

CHANGELOG.md

@@ -3,6 +3,7 @@
 New features:
 
 * Enable and document `--coverage` option (#1840, @chrisseaton).
+* Update the internal LLVM toolchain to LLVM 9 and reduce its download size.
 
 Bug fixes:
 

README.md

@@ -106,7 +106,7 @@ environment, for example by unmounting system filesystems such as `/dev/shm`.
 
 ## Dependencies
 
-* [make, gcc and libxml2](doc/user/installing-llvm.md) for building C and C++ extensions.
+* [make and gcc](doc/user/installing-llvm.md) for building C and C++ extensions.
 * [libssl](doc/user/installing-libssl.md) for the `openssl` C extension
 * [zlib](doc/user/installing-zlib.md) for the `zlib` C extension
 

doc/user/installing-llvm.md

@@ -9,13 +9,13 @@ The `make` utility as well as the dependencies of the toolchain still need to be
 ## RedHat-based: Fedora, Oracle Linux, etc
 
 ```bash
-$ sudo dnf install make gcc libxml2
+$ sudo dnf install make gcc
 ```
 
 ## Debian-based: Ubuntu, etc
 
 ```bash
-$ sudo apt-get install make gcc libxml2
+$ sudo apt-get install make gcc
 ```
 
 ## macOS

mx.truffleruby/suite.py

@@ -9,7 +9,7 @@
                 "name": "tools",
                 "subdir": True,
                 # version must always be equal to the version of the "sulong" import below
-                "version": "7320bcd1a6533f07360f88b6844872b54afce052",
+                "version": "70c5f95afa7f3e5f66952310bcfe8bea50b78eb9",
                 "urls": [
                     {"url": "https://github.com/oracle/graal.git", "kind": "git"},
                     {"url": "https://curio.ssw.jku.at/nexus/content/repositories/snapshots", "kind": "binary"},
@@ -19,7 +19,7 @@
                 "name": "sulong",
                 "subdir": True,
                 # version must always be equal to the version of the "tools" import above
-                "version": "7320bcd1a6533f07360f88b6844872b54afce052",
+                "version": "70c5f95afa7f3e5f66952310bcfe8bea50b78eb9",
                 "urls": [
                     {"url": "https://github.com/oracle/graal.git", "kind": "git"},
                     {"url": "https://curio.ssw.jku.at/nexus/content/repositories/snapshots", "kind": "binary"},

tool/docker-configs.yaml

@@ -17,7 +17,7 @@ deb_packages: &deb_packages
   specs: netbase
   zlib: libz-dev
   openssl: libssl-dev
-  cext: gcc libxml2 make
+  cext: gcc make
   source: file g++ python ruby
 
 ol7: