Fix warnings from clang build on macOS.

Reviewers: lldb-commits

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D31279

llvm-svn: 298585
diff --git a/lldb/source/Host/common/Symbols.cpp b/lldb/source/Host/common/Symbols.cpp
index e3d5bdf..c45ca11 100644
--- a/lldb/source/Host/common/Symbols.cpp
+++ b/lldb/source/Host/common/Symbols.cpp
@@ -55,6 +55,7 @@
     ModuleSpec spec;
     for (size_t i = 0; i < module_specs.GetSize(); ++i) {
       bool got_spec = module_specs.GetModuleSpecAtIndex(i, spec);
+      UNUSED_IF_ASSERT_DISABLED(got_spec);
       assert(got_spec);
       if ((uuid == NULL || (spec.GetUUIDPtr() && spec.GetUUID() == *uuid)) &&
           (arch == NULL || (spec.GetArchitecturePtr() &&