2010-01-13 Doug Kwan <dougkwan@google.com>

	* arm.cc (Arm_relobj::section_needs_reloc_stub_scanning,
	Arm_relobj::section_needs_cortex_a8_stub_scanning,
	Arm_relobj::scan_section_for_cortex_a8_erratum,
	Arm_relobj::scan_span_for_cortex_a8_erratum): New methods.
	(Arm_relobj::scan_sections_for_stubs): Move code deciding what
	sections to scan for relocation stubs into a new method
	Arm_relobj::section_needs_reloc_stub_scanning.  Handle both
	relocation and Cortex-A8 stub scanning.
	(Target_arm::do_relax): Force stubs to be after stubbed sections
	if fixing the Cortex-A8 erratum.  Remove all Cortex-A8 stubs at
	the beginning of a new relaxation pass.  Update a comment.
	(Target_arm::scan_span_for_cortex_a8_erratum): New method definition.

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