Go patch committed: Fix global var init to call with calls as args

[Ian Lance Taylor]

The Go frontend had a bug when initializing a global variable to a
function call when some of the arguments to the call were themselves
function calls.  The code which enforces function call ordering was
accidentally causing the outermost function to be called twice.  This
patch fixes the bug.  Bootstrapped and ran Go testsuite on
x86_64-unknown-linux-gnu.  Committed to mainline.

Ian

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