Bunch of cleanups for warnings found by the llvm static analyzer.

llvm-svn: 165808
diff --git a/lldb/source/Expression/ClangExpressionParser.cpp b/lldb/source/Expression/ClangExpressionParser.cpp
index 1bf791b..3d82b12 100644
--- a/lldb/source/Expression/ClangExpressionParser.cpp
+++ b/lldb/source/Expression/ClangExpressionParser.cpp
@@ -755,6 +755,7 @@
     {
         ret.SetErrorToGenericError();
         ret.SetErrorString("Couldn't find the target");
+        return ret;
     }
     
     lldb::DataBufferSP buffer_sp(new DataBufferHeap(func_range.second, 0));