Don't emit adjacent operands in -fdump-go-spec

[Ian Lance Taylor]

This patch changes -fdump-go-spec to avoid emitting two adjacent
operands.  That sometimes happens when C code is using string
concatenation.  It would be possible in principle to use turn C adjacent
string concatenation to use Go's + operator, but for the current uses of
-fdump-go-spec that is an unimportant tweak.  Bootstrapped and ran Go
testsuite on x86_64-unknown-linux-gnu.  Committed to mainline.

Ian


2011-01-28  Ian Lance Taylor  <iant@google.com>

	* godump.c (go_define): Ignore macros whose definitions include
	two adjacent operands.


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