Fix compiler tests with incompatible types in assertEquals arguments.

compiler/testData/codegen/boxWithStdlib/fullJdk/regressions/collections.kt

@@ -12,7 +12,7 @@ fun <T> testCollectionContains(c: Collection<T>) = assertTrue(c.contains(1))
 fun <T> testCollectionIterator(c: Collection<T>) {
     val it = c.iterator()
     while (it.hasNext()) {
-        assertEquals(1, it.next())
+        assertEquals(1, it.next() as Any?)
     }
 }
 fun <T> testCollectionContainsAll(c: Collection<T>) = assertTrue(c.containsAll(c))

compiler/testData/codegen/boxWithStdlib/jvmField/topLevelFieldReference.kt

@@ -20,5 +20,5 @@ fun box(): String {
 }
 
 public fun <T, R> checkAccessor(prop: KProperty0<T>, value: R) {
-    assertEquals(prop.get(), value, "Property ${prop} has wrong value")
+    assertEquals<Any?>(prop.get(), value, "Property ${prop} has wrong value")
 }

compiler/testData/codegen/boxWithStdlib/reflection/classLiterals/arrays.kt

@@ -1,11 +1,12 @@
 import kotlin.test.*
+import kotlin.reflect.KClass
 
 fun box(): String {
     val any = Array<Any>::class
     val string = Array<String>::class
 
-    assertNotEquals(any, string)
+    assertNotEquals<KClass<*>>(any, string)
-    assertNotEquals(any.java, string.java)
+    assertNotEquals<Class<*>>(any.java, string.java)
 
     return "OK"
 }