build external projects for verification testing (#4741)

test/release/buble.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+
+alias uglify-js=$PWD/bin/uglifyjs
+UGLIFY_OPTIONS=$@
+
+minify_in_situ() {
+    DIRS="$1"
+    echo '> uglify-js' $DIRS $UGLIFY_OPTIONS
+    for i in `find $DIRS -name '*.js'`
+    do
+        echo "$i"
+        uglify-js "$i" $UGLIFY_OPTIONS -o "$i"
+    done
+}
+
+rm -rf tmp/buble \
+&& git clone https://github.com/bublejs/buble.git tmp/buble \
+&& cd tmp/buble \
+&& rm -rf .git/hooks \
+&& git checkout dcc5ab02c9af6ddaad94e587c4911677340ec100 \
+&& patch -l -p1 <<EOF
+--- a/package.json
++++ b/package.json
+@@ -29 +28,0 @@
+-    "prepublish": "npm test",
+@@ -67,3 +66 @@
+-    "source-map-support": "^0.5.16",
+-    "test262": "git+https://github.com/tc39/test262.git#4f1155c566a222238fd86f179c6635ecb4c289bb",
+-    "test262-stream": "^1.3.0"
++    "source-map-support": "^0.5.16"
+--- a/src/program/BlockStatement.js
++++ b/src/program/BlockStatement.js
+@@ -309 +309 @@ export default class BlockStatement extends Node {
+-                               let cont = false; // TODO implement proper continue...
++                               let cont = !declarations; // TODO implement proper continue...
+EOF
+ERR=$?; if [ "$ERR" != "0" ]; then echo "Error: $ERR"; exit $ERR; fi
+minify_in_situ "src" \
+&& rm -rf node_modules \
+&& npm ci \
+&& rm -rf dist \
+&& npm run build \
+&& minify_in_situ "dist" \
+&& node_modules/.bin/mocha