Handle raw types in bounds of Java class type params

Fixes #10225.

Author: smarter

compiler/src/dotty/tools/dotc/core/classfile/ClassfileParser.scala

@@ -464,7 +464,7 @@ class ClassfileParser(
         if (sig(index) != ':') { // guard against empty class bound
           val tp = sig2type(tparams, skiptvs)
           if (!skiptvs)
-            ts += tp
+            ts += cook(tp)
         }
       }
       if (!skiptvs) {

tests/pos-java-interop-separate/i10225/A_1.java

@@ -0,0 +1 @@
+class A_1<T> {}

tests/pos-java-interop-separate/i10225/B_1.java

@@ -0,0 +1,3 @@
+class B_1<S extends A_1> {
+  public B_1(S s) { }
+}

tests/pos-java-interop-separate/i10225/Test_2.scala

@@ -0,0 +1,4 @@
+object Test {
+  val a = new A_1[String]
+  val b = new B_1(a)
+}