Tests with version-specific codes

Author: aszady

test_cross_build/version_specific/BUILD

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+load("@io_bazel_rules_scala//scala:scala.bzl", "scala_library")
+load("@io_bazel_rules_scala_config//:config.bzl", "SCALA_VERSIONS")
+
+
+# What's new in 3.3
+scala_library(
+    name = "since_3_3",
+    srcs = ["since_3_3.scala"],
+    scala_version = "3.3.1",
+)
+scala_library(
+    name = "before_3_3",
+    srcs = ["before_3_3.scala"],
+    scala_version = "3.2.1"
+)
+
+# What's new in 3.2
+scala_library(
+    name = "since_3_2",
+    srcs = ["since_3_2.scala"],
+    scala_version = "3.2.1",
+)
+scala_library(
+    name = "before_3_2",
+    srcs = ["before_3_2.scala"],
+    scala_version = "3.1.0",
+)
+
+# What's new in 3.1
+scala_library(
+    name = "since_3_1",
+    srcs = ["since_3_1.scala"],
+    scala_version = "3.1.0",
+)
+
+
+scala_library(
+    name = "scala_3_3",
+    srcs = [
+        "since_3_3.scala",
+        "since_3_2.scala",
+        "since_3_1.scala",
+    ],
+    scala_version = "3.3.1",
+)
+scala_library(
+    name = "scala_3_2",
+    srcs = [
+        "before_3_3.scala",
+        "since_3_2.scala",
+        "since_3_1.scala",
+    ],
+    scala_version = "3.2.1",
+)
+scala_library(
+    name = "scala_3_1",
+    srcs = [
+        "before_3_3.scala",
+        "before_3_2.scala",
+        "since_3_1.scala",
+    ],
+    scala_version = "3.1.0",
+)

test_cross_build/version_specific/before_3_2.scala

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+class Example(using String)(i: Int)
+given String = "something"
+val instance = Example()(6)

test_cross_build/version_specific/before_3_3.scala

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+class Outer:
+    type Inner
+
+inline def method(inline param: Outer): param.Inner = ???

test_cross_build/version_specific/since_3_1.scala

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+type Choice[A] = A match { case Int => Long ; case Long => Int }

test_cross_build/version_specific/since_3_2.scala

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+class Example(using String)(i: Int)
+given String = "something"
+val instance = Example(6)

test_cross_build/version_specific/since_3_3.scala

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+import util.boundary, boundary.break