Support parameter names for Java 8 classes in reflection

Also support specifying additional options to javac in codegen tests, which was
needed to compile Java sources with the "-parameters" option

compiler/testData/codegen/java8/boxWithJava/reflection/realParameterNames/J.java

@@ -0,0 +1,5 @@
+public class J {
+    public J(String constructorParam) {}
+
+    public static void foo(int methodParam) {}
+}

compiler/testData/codegen/java8/boxWithJava/reflection/realParameterNames/K.kt

@@ -0,0 +1,15 @@
+// JAVAC_OPTIONS: -parameters
+
+import kotlin.test.assertEquals
+
+fun box(): String {
+    val methodParam = J::foo.parameters.single()
+    if (methodParam.name == null) return "Fail: method parameter has no name"
+    assertEquals("methodParam", methodParam.name)
+
+    val constructorParam = J::class.constructors.single().parameters.single()
+    if (constructorParam.name == null) return "Fail: constructor parameter has no name"
+    assertEquals("constructorParam", constructorParam.name)
+
+    return "OK"
+}

compiler/testData/codegen/java8/boxWithJava/reflection/synthesizedParameterNames/J.java

@@ -0,0 +1,5 @@
+public class J {
+    public J(String constructorParam) {}
+
+    public static void foo(int methodParam) {}
+}

compiler/testData/codegen/java8/boxWithJava/reflection/synthesizedParameterNames/K.kt

@@ -0,0 +1,13 @@
+import kotlin.test.assertEquals
+
+fun box(): String {
+    val methodParam = J::foo.parameters.single()
+    if (methodParam.name == null) return "Fail: method parameter has no name"
+    assertEquals("arg0", methodParam.name)
+
+    val constructorParam = J::class.constructors.single().parameters.single()
+    if (constructorParam.name == null) return "Fail: constructor parameter has no name"
+    assertEquals("arg0", constructorParam.name)
+
+    return "OK"
+}