Disallow named arguments for Java methods

Since they don't have stable names: they're (sometimes) loaded from the
bytecode, which (sometimes) doesn't contain parameter names

compiler/testData/diagnostics/tests/namedArguments/namedArgumentsAndDefaultValues.kt

@@ -0,0 +1,27 @@
+fun foo(<!UNUSED_PARAMETER!>a<!> : Int = 1, <!UNUSED_PARAMETER!>b<!> : String = "abc") {
+}
+
+fun bar(<!UNUSED_PARAMETER!>x<!> : Int = 1, <!UNUSED_PARAMETER!>y<!> : Int = 1, <!UNUSED_PARAMETER!>z<!> : String) {
+}
+
+fun test() {
+    foo()
+    foo(2)
+    foo(<!TYPE_MISMATCH!>""<!>)
+    foo(b = "")
+    foo(1, "")
+    foo(a = 2)
+    foo(1, "", <!TOO_MANY_ARGUMENTS!>""<!>)
+
+    bar(z = "")
+    bar(<!NO_VALUE_FOR_PARAMETER!>)<!>
+    bar(<!TYPE_MISMATCH!>""<!><!NO_VALUE_FOR_PARAMETER!>)<!>
+    bar(1, 1, "")
+    bar(1, 1, "")
+    bar(1, z = "")
+    bar(1, z = "", y = 2)
+    bar(z = "", <!MIXING_NAMED_AND_POSITIONED_ARGUMENTS!>1<!>)
+    bar(1, <!NAMED_PARAMETER_NOT_FOUND!>zz<!> = "",
+           <!MIXING_NAMED_AND_POSITIONED_ARGUMENTS!><!UNRESOLVED_REFERENCE!>zz<!>.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>foo<!><!>
+           <!NO_VALUE_FOR_PARAMETER!>)<!>
+}