Fix use of uninitialized variable.

Fixes linking bitcode files that use the new style comdats for constructors
with ones that don't.

llvm-svn: 215364
diff --git a/llvm/test/Linker/Inputs/constructor-comdat.ll b/llvm/test/Linker/Inputs/constructor-comdat.ll
new file mode 100644
index 0000000..b5f23da
--- /dev/null
+++ b/llvm/test/Linker/Inputs/constructor-comdat.ll
@@ -0,0 +1,7 @@
+define weak_odr void @_ZN3fooIiEC2Ev() {
+  ret void
+}
+
+define weak_odr void @_ZN3fooIiEC1Ev() {
+  ret void
+}