JavaMapForEachInspection: don't report if argument is not single

#KT-39151 Fixed

idea/testData/inspectionsLocal/javaMapForEach/notSingleArgument.kt

@@ -0,0 +1,11 @@
+// PROBLEM: none
+// RUNTIME_WITH_FULL_JDK
+import java.util.concurrent.ConcurrentHashMap
+
+fun test(map: ConcurrentHashMap<Int, String>) {
+    map.<caret>forEach(1) { key, value ->
+        foo(key, value)
+    }
+}
+
+fun foo(i: Int, s: String) {}