gold patch committed: Don't error on same redefinition

[Ian Lance Taylor]

This patch to gold avoids giving an error if a symbol is redefined with
the same object and value.  This fixes the test case in PR 12893, in
which the symbol is defined both with and without a version in an object
file using .symver, and then the symbol with no version is given the
same version again by a version script.  Committed to mainline.

Ian


2011-06-17  Ian Lance Taylor  <iant@google.com>

	PR gold/12893
	* resolve.cc (Symbol_table::resolve): Don't give an error if a
	symbol is redefined with the exact same object and value.


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