Support KCallable.callBy with map of parameters to arguments

callBy is able to handle optional parameters.

 #KT-8827 Fixed

compiler/testData/codegen/boxWithStdlib/reflection/callBy/platformStaticInObject.kt

@@ -0,0 +1,28 @@
+import kotlin.platform.platformStatic as static
+import kotlin.test.assertEquals
+
+object Obj {
+    static fun foo(a: String, b: String = "b") = a + b
+}
+
+fun box(): String {
+    val f = Obj::foo
+
+    // Any object method currently requires the object instance passed
+    try {
+        f.callBy(mapOf(
+                f.parameters.single { it.name == "a" } to "a"
+        ))
+        return "Fail: IllegalArgumentException should have been thrown"
+    }
+    catch (e: IllegalArgumentException) {
+        // OK
+    }
+
+    assertEquals("ab", f.callBy(mapOf(
+            f.parameters.first() to Obj,
+            f.parameters.single { it.name == "a" } to "a"
+    )))
+
+    return "OK"
+}