Introduce UNUSED_ANONYMOUS_PARAMETER for anonymous functions

It is not reported for 1.0 language version because
renaming to _ is not possible. It has weak warning severity

So #KT-8813 Fixed
So #KT-16875 Fixed

compiler/testData/diagnostics/testsWithStdLib/annotations/JvmSyntheticOnDelegate.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
 import kotlin.properties.Delegates
 
 class My {

compiler/testData/diagnostics/testsWithStdLib/annotations/Volatile.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
 import kotlin.jvm.Volatile
 import kotlin.properties.Delegates
 

compiler/testData/diagnostics/testsWithStdLib/coroutines/inference/withUninferredParameter.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_VARIABLE
+// !DIAGNOSTICS: -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_ANONYMOUS_PARAMETER -UNUSED_VARIABLE
 
 class GenericController<T> {
     suspend fun yield(t: T) {}

compiler/testData/diagnostics/testsWithStdLib/coroutines/tailCalls/forbidden.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
 import kotlin.coroutines.experimental.*
 import kotlin.coroutines.experimental.intrinsics.*
 

compiler/testData/diagnostics/testsWithStdLib/coroutines/tailCalls/tryCatch.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
 import kotlin.coroutines.experimental.*
 import kotlin.coroutines.experimental.intrinsics.*
 

compiler/testData/diagnostics/testsWithStdLib/coroutines/tailCalls/valid.kt

@@ -1,4 +1,4 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
+// !DIAGNOSTICS: -UNUSED_ANONYMOUS_PARAMETER
 import kotlin.coroutines.experimental.*
 import kotlin.coroutines.experimental.intrinsics.*
 

compiler/testData/diagnostics/testsWithStdLib/functionLiterals/pseudocodeMemoryOverhead.kt

@@ -33,8 +33,8 @@ private val STRING = CompileTimeType<String>()
 private val ANY = CompileTimeType<Any>()
 
 
-private val emptyBinaryFun: Function2<BigInteger, BigInteger, BigInteger> = { <!UNUSED_PARAMETER!>a<!>, <!UNUSED_PARAMETER!>b<!> -> BigInteger("0") }
-private val emptyUnaryFun: Function1<Long, Long> = { <!UNUSED_PARAMETER!>a<!> -> 1.toLong() }
+private val emptyBinaryFun: Function2<BigInteger, BigInteger, BigInteger> = { <!UNUSED_ANONYMOUS_PARAMETER!>a<!>, <!UNUSED_ANONYMOUS_PARAMETER!>b<!> -> BigInteger("0") }
+private val emptyUnaryFun: Function1<Long, Long> = { <!UNUSED_ANONYMOUS_PARAMETER!>a<!> -> 1.toLong() }
 
 private val unaryOperations: HashMap<UnaryOperationKey<*>, Pair<Function1<Any?, Any>, Function1<Long, Long>>>
         = hashMapOf<UnaryOperationKey<*>, Pair<Function1<Any?, Any>, Function1<Long, Long>>>(

compiler/testData/diagnostics/testsWithStdLib/regression/ea70485_functionTypeInheritor.kt

@@ -4,7 +4,7 @@ class O : Function2<Int, String, Unit> {
 }
 
 fun test() {
-    val a = fun(<!UNUSED_PARAMETER!>o<!>: O) {
+    val a = fun(<!UNUSED_ANONYMOUS_PARAMETER!>o<!>: O) {
     }
     a <!TYPE_MISMATCH!>{}<!>
 }