re-add tests

Author: aherlihy

compiler/test-resources/repl/jar-command

@@ -0,0 +1,13 @@
+scala> val z = 1
+val z: Int = 1
+
+scala>:jar sbt-test/source-dependencies/canon/actual/a.jar
+Added 'sbt-test/source-dependencies/canon/actual/a.jar' to classpath.
+
+scala> import A.x
+
+scala> x
+val res0: Int = 3
+
+scala> z
+val res1: Int = 1

compiler/test-resources/repl/jar-errors

@@ -0,0 +1,11 @@
+scala>:jar path/does/not/exist
+Cannot add "path/does/not/exist" to classpath.
+
+scala>:jar sbt-test/source-dependencies/canon/actual/a.jar
+Added 'sbt-test/source-dependencies/canon/actual/a.jar' to classpath.
+
+scala>:jar sbt-test/source-dependencies/canon/actual/a.jar
+The path 'sbt-test/source-dependencies/canon/actual/a.jar' cannot be loaded, it contains a classfile that already exists on the classpath: sbt-test/source-dependencies/canon/actual/a.jar(A.class)
+
+scala>:require sbt-test/source-dependencies/canon/actual/a.jar
+:require has been deprecated and replaced with :jar. Please use :jar

compiler/test-resources/repl/jar-multiple

@@ -0,0 +1,32 @@
+scala> val z = 1
+val z: Int = 1
+
+scala>:jar compiler/test-resources/jars/mylibrary.jar
+Added 'compiler/test-resources/jars/mylibrary.jar' to classpath.
+
+scala> import mylibrary.Utils
+
+scala> Utils.greet("Alice")
+val res0: String = Hello, Alice!
+
+scala>:jar compiler/test-resources/jars/mylibrary2.jar
+Added 'compiler/test-resources/jars/mylibrary2.jar' to classpath.
+
+scala> import mylibrary2.Utils2
+
+scala> Utils2.greet("Alice")
+val res1: String = Greetings, Alice!
+
+scala> Utils.greet("Alice")
+val res2: String = Hello, Alice!
+
+scala> import mylibrary.Utils.greet
+
+scala> greet("Tom")
+val res3: String = Hello, Tom!
+
+scala> Utils.greet("Alice")
+val res4: String = Hello, Alice!
+
+scala> z
+val res5: Int = 1