Start moving the testsuite to the "_ = foo()" idiom for evaluating an

expression but ignoring its value.  This is the right canonical way to do
this.  NFC, just testsuite changes.



Swift SVN r28638

test/ClangModules/cstring_parse.swift

@@ -12,5 +12,5 @@
 import cfuncs
 
 func test_puts(s: String) {
-  var _ = puts(s) + 32
+  _ = puts(s) + 32
 }