JVM IR: fix HashCode intrinsic for generics substituted with primitives

The problem here was that although the IR type of the expression was
primitive, the type of the actual expression in the bytecode generated
after type erasure was `Ljava/lang/Object;`, and we were trying to call
a non-existing method `Object.hashCode(Object)`.

 #KT-41669 Fixed

compiler/testData/codegen/box/ir/hashCodeOnGenericSubstitutedWithPrimitive.kt

@@ -0,0 +1,11 @@
+// JVM_TARGET: 1.8
+
+class A<T> {
+    fun id(x: T): T = x
+}
+
+fun foo(f: A<Boolean>): Int =
+    f.id(true).hashCode()
+
+fun box(): String =
+    if (foo(A<Boolean>()) == true.hashCode()) "OK" else "Fail"