Merge pull request #118 from modocache/fix-pr-2609-gold-by-default

[Tests] Set LD_LIBRARY_PATH when running tests

Author: modocache

Tests/Functional/lit.cfg

@@ -76,6 +76,7 @@ else:
         '-I', foundation_dir,
         '-I', core_foundation_dir,
     ])
+    config.environment['LD_LIBRARY_PATH'] = foundation_dir
 
 # Having prepared the swiftc command, we set the substitution.
 config.substitutions.append(('%{swiftc}', ' '.join(swift_exec)))