[kaffe] Bytecode fails verification when anonymous class inherits inner class of another class.

[Kalle Olavi Niemitalo]

Compile this code (from <http://gcc.gnu.org/PR19471>) with kjc
of Kaffe 1.1.4.PRECVS6-1 from Debian:

class First {
    class Inner {}
};

class Second {
    void fn(First first) {
	first.new Inner() {
		void crash() {}
	    };
    }
}

The resulting Second$1Inner.class contains this method:

Method name:"<init>" public Signature: (Second,First)void
Attribute "Code", length:38, max_stack:2, max_locals:3, code_length:14
  0: aload_0
  1: aload_2
  2: getfield <Field First$Inner.this$0 First>
  5: invokespecial <Method First$Inner.<init> (First)void>
  8: aload_0
  9: aload_1
 10: putfield <Field Second$1Inner.this$0 Second>
 13: return
Attribute "LineNumberTable", length:6, count: 1
  line: 7 at pc: 0
Attribute "Signature", length:2

The getfield instruction at PC=2 is incorrect, as shown by GCC:

$ gcj -c 'Second$1Inner.class'
PR19471.java: In class 'Second$1Inner':
PR19471.java: In constructor '(Second,First)':
PR19471.java:7: error: verification error at PC=2
PR19471.java:7: error: expected type 'First$Inner' but stack contains 'First'

Compare to the result from Jikes:

Method name:"<init>" Signature: (Second,First)void
Attribute "Code", length:39, max_stack:2, max_locals:3, code_length:11
  0: aload_0
  1: aload_1
  2: putfield <Field Second$1.this Second>
  5: aload_0
  6: aload_2
  7: invokespecial <Method First$Inner.<init> (First)void>
 10: return
Attribute "LineNumberTable", length:10, count: 2
  line: 7 at pc: 5
  line: 7 at pc: 10
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