[PATCH testcase]fix failure of g++.dg/ext/arm-fp16/fp16-mangle-1.C

["Bin Cheng" <bin dot cheng at arm dot com>]

Hi,
g++.dg/ext/arm-fp16/fp16-mangle-1.C is failed because GCC now sets
DECL_COMDAT on template instantiations if flag_implicit_templates is in
effect.  Then DECL_WEAK will be set accordingly.  As a result, checking for
".global xxxx" would fail on this case.

This patch fixes this by relaxing scanning string into ".global|weak xxxx"
just in case it's still global if some options are specified explicitly.

Since the change is made by
https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=213307.
Hi Jason, could you help me here that I understood the issue correctly?
Thanks very much.

Thanks,
bin

gcc/testsuite/ChangeLog
2014-08-14  Bin Cheng  <bin.cheng@arm.com>

	* g++.dg/ext/arm-fp16/fp16-mangle-1.C: Also check .weak.

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