Replace DwflDieBias with DwflDie <is-a> DwarfDie.

Replace DwflDieBias with DwflDie <is-a> DwarfDie.

This eliminates the redundant bias field in DwflDieBias - the Die
has-a DwflModule and that has-a bias.

frysk-core/frysk/debuginfo/ChangeLog
2008-06-05  Andrew Cagney  <cagney@redhat.com>

	* DebugInfoFrame.java: Use DwflDie.
	* gen-type-expect-tests.py: Ditto.
	* TestFrameDebugInfo.java: Ditto.
	* DebugInfo.java: Ditto.

frysk-core/frysk/expr/ChangeLog
2008-06-05  Andrew Cagney  <cagney@redhat.com>

	* ExprSearchEngine.java: Use DwflDie.

frysk-core/frysk/rt/ChangeLog
2008-06-05  Andrew Cagney  <cagney@redhat.com>

	* FunctionBreakpoint.java: Use DwflDie.

frysk-core/frysk/scopes/ChangeLog
2008-06-05  Andrew Cagney  <cagney@redhat.com>

	* TestDie.java: Use DwflDie.
	* TestScopeFactory.java: Ditto.

frysk-core/frysk/symtab/ChangeLog
2008-06-05  Andrew Cagney  <cagney@redhat.com>

	* DwflSymbol.java: Use DwflDie.
	* SymbolFactory.java: Ditto.

frysk-sys/lib/dwfl/ChangeLog
2008-06-05  Andrew Cagney  <cagney@redhat.com>

	* DwflDie.java: Replace DwflDieBias.java; extends DwarfDie.
	* DwarfDieFactory.java (makeDwflDie(long,DwflModule)): New.
	* DwarfDie.java: Simplify.
	* Dwfl.java: Update.
	* TestDwarfDie.java: Update.
	* TestDwfl.java: Update.
	* jni/DwflModule.cxx: Update.
	* cni/DwflModule.cxx: Update.