[committed] MIPS/LD/testsuite: Make Linux dumps for n64 GOT relocation tests the default

[Maciej W. Rozycki]

The current default dumps for n64 GOT relocation tests only work for 
IRIX targets really, while the Linux dumps are suitable for non-Linux 
targets as well.  Make the Linux dumps the default then and handle the 
IRIX ones as a special case.

Define an `irix' variable as a shorthand for `[istarget *-*-irix*]' and 
use it for these n64 GOT relocation tests as well as export class call 
relocation tests.

	ld/
	* testsuite/ld-mips-elf/elf-rel-got-n64.d: Rename to...
	* testsuite/ld-mips-elf/elf-rel-got-n64-irix.d: ... this.
	* testsuite/ld-mips-elf/elf-rel-got-n64-linux.d: Rename to...
	* testsuite/ld-mips-elf/elf-rel-got-n64.d: ... this.
	* testsuite/ld-mips-elf/elf-rel-xgot-n64.d: Rename to...
	* testsuite/ld-mips-elf/elf-rel-xgot-n64-irix.d: ... this.
	* testsuite/ld-mips-elf/elf-rel-xgot-n64-linux.dd: Rename to...
	* testsuite/ld-mips-elf/elf-rel-xgot-n64.d: ... this.
	* testsuite/ld-mips-elf/mips-elf.exp: Update accordingly.  
	Define `irix' as a shorthand for `[istarget *-*-irix*]' and use 
	it throughout.
---
 ld/testsuite/ld-mips-elf/elf-rel-got-n64-irix.d   |  326 ++++++++
 ld/testsuite/ld-mips-elf/elf-rel-got-n64-linux.d  |  327 --------
 ld/testsuite/ld-mips-elf/elf-rel-got-n64.d        |  591 +++++++--------
 ld/testsuite/ld-mips-elf/elf-rel-xgot-n64-irix.d  |  440 +++++++++++
 ld/testsuite/ld-mips-elf/elf-rel-xgot-n64-linux.d |  445 -----------
 ld/testsuite/ld-mips-elf/elf-rel-xgot-n64.d       |  823 +++++++++++-----------
 ld/testsuite/ld-mips-elf/mips-elf.exp             |    9 
 7 files changed, 1481 insertions(+), 1480 deletions(-)

binutils-ld-mips-test-reloc-n64-default.diff
[Patch attached compressed due to its size.]
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