Sweep attributes on GenericParameters and InterfaceImplementations (#571)

* Update dependencies from https://github.com/dotnet/arcade build 20190514.13

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19264.13

* Update dependencies from https://github.com/dotnet/arcade build 20190516.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19266.2

* Sweep attributes on GenericParameters and InterfaceImplementations

This fixes test failures that show up due to NullableAttribute with
recent versions of .NET Core (https://github.com/mono/linker/pull/570)

* Increase line count limit for reduced tracing test

* Add test for sweeping attributes on GenericParameters

3 files changed, 36 insertions, 4 deletions

diff --git a/eng/common/cross/arm64/sources.list.buster b/eng/common/cross/arm64/sources.list.buster
new file mode 100644
index 000000000..7194ac64a
--- /dev/null
+++ b/eng/common/cross/arm64/sources.list.buster
@@ -0,0 +1,11 @@
+deb http://deb.debian.org/debian buster main
+deb-src http://deb.debian.org/debian buster main
+
+deb http://deb.debian.org/debian-security/ buster/updates main
+deb-src http://deb.debian.org/debian-security/ buster/updates main
+
+deb http://deb.debian.org/debian buster-updates main
+deb-src http://deb.debian.org/debian buster-updates main
+
+deb http://deb.debian.org/debian buster-backports main contrib non-free
+deb-src http://deb.debian.org/debian buster-backports main contrib non-free
diff --git a/eng/common/cross/arm64/sources.list.stretch b/eng/common/cross/arm64/sources.list.stretch
new file mode 100644
index 000000000..0e1215774
--- /dev/null
+++ b/eng/common/cross/arm64/sources.list.stretch
@@ -0,0 +1,12 @@
+deb http://deb.debian.org/debian stretch main
+deb-src http://deb.debian.org/debian stretch main
+
+deb http://deb.debian.org/debian-security/ stretch/updates main
+deb-src http://deb.debian.org/debian-security/ stretch/updates main
+
+deb http://deb.debian.org/debian stretch-updates main
+deb-src http://deb.debian.org/debian stretch-updates main
+
+deb http://deb.debian.org/debian stretch-backports main contrib non-free
+deb-src http://deb.debian.org/debian stretch-backports main contrib non-free
+
diff --git a/eng/common/cross/build-rootfs.sh b/eng/common/cross/build-rootfs.sh
index 83ec39195..34d3d2ba1 100644
--- a/eng/common/cross/build-rootfs.sh
+++ b/eng/common/cross/build-rootfs.sh
@@ -2,7 +2,7 @@
 
 usage()
 {
-    echo "Usage: $0 [BuildArch] [LinuxCodeName] [lldbx.y] [--skipunmount] --rootfs <directory>]"
+    echo "Usage: $0 [BuildArch] [LinuxCodeName] [lldbx.y] [--skipunmount] --rootfsdir <directory>]"
     echo "BuildArch can be: arm(default), armel, arm64, x86"
     echo "LinuxCodeName - optional, Code name for Linux, can be: trusty, xenial(default), zesty, bionic, alpine. If BuildArch is armel, LinuxCodeName is jessie(default) or tizen."
     echo "lldbx.y - optional, LLDB version, can be: lldb3.9(default), lldb4.0, lldb5.0, lldb6.0 no-lldb. Ignored for alpine"
@@ -113,12 +113,12 @@ while :; do
                 __LinuxCodeName=trusty
             fi
             ;;
-        xenial) # Ubunry 16.04
+        xenial) # Ubuntu 16.04
             if [ "$__LinuxCodeName" != "jessie" ]; then
                 __LinuxCodeName=xenial
             fi
             ;;
-        zesty) # Ununtu 17.04
+        zesty) # Ubuntu 17.04
             if [ "$__LinuxCodeName" != "jessie" ]; then
                 __LinuxCodeName=zesty
             fi
@@ -132,7 +132,16 @@ while :; do
             __LinuxCodeName=jessie
             __UbuntuRepo="http://ftp.debian.org/debian/"
             ;;
-        # TBD Stretch -> Debian 9, Buster -> Debian 10
+        stretch) # Debian 9
+            __LinuxCodeName=stretch
+            __UbuntuRepo="http://ftp.debian.org/debian/"
+            __LLDB_Package="liblldb-6.0-dev"
+            ;;
+        buster) # Debian 10
+            __LinuxCodeName=buster
+            __UbuntuRepo="http://ftp.debian.org/debian/"
+            __LLDB_Package="liblldb-6.0-dev"
+            ;;
         tizen)
             if [ "$__BuildArch" != "armel" ]; then
                 echo "Tizen is available only for armel."