FDR: Squash buckets of included literals in FDR confirm

- Change the compile of literal matchers to two passes.
 - Reverse the bucket assignment in FDR, bucket with longer literals has
   smaller bucket id.
 - Squash the buckets of included literals and jump to the the program of
   included literals directly from parent literal program without going
   through FDR confirm for included iterals.

src/fdr/fdr_compile.h

@@ -34,6 +34,7 @@
 #define FDR_COMPILE_H
 
 #include "ue2common.h"
+#include "hwlm/hwlm_build.h"
 #include "util/bytecode_ptr.h"
 
 #include <vector>
@@ -46,18 +47,23 @@ struct hwlmLiteral;
 struct Grey;
 struct target_t;
 
-bytecode_ptr<FDR> fdrBuildTable(const std::vector<hwlmLiteral> &lits,
-                                bool make_small, const target_t &target,
-                                const Grey &grey);
+bytecode_ptr<FDR> fdrBuildTable(const HWLMProto &proto, const Grey &grey);
 
 #if !defined(RELEASE_BUILD)
-
-bytecode_ptr<FDR> fdrBuildTableHinted(const std::vector<hwlmLiteral> &lits,
-                                      bool make_small, u32 hint,
-                                      const target_t &target, const Grey &grey);
-
+std::unique_ptr<HWLMProto> fdrBuildProtoHinted(
+                                          u8 engType,
+                                          std::vector<hwlmLiteral> lits,
+                                          bool make_small, u32 hint,
+                                          const target_t &target,
+                                          const Grey &grey);
 #endif
 
+std::unique_ptr<HWLMProto> fdrBuildProto(
+                                     u8 engType,
+                                     std::vector<hwlmLiteral> lits,
+                                     bool make_small, const target_t &target,
+                                     const Grey &grey);
+
 /** \brief Returns size in bytes of the given FDR engine. */
 size_t fdrSize(const struct FDR *fdr);