Add ability to test parsing of bitcode records in Subzero.

Makefile.standalone

 # The following variables will likely need to be modified, depending on where
 # and how you built LLVM & Clang. They can be overridden in a command-line
 # invocation of make, like:
 #
 #   make LLVM_SRC_PATH=<path> LLVM_BIN_PATH=<path> \
 #        LIBCXX_INSTALL_PATH=<path> CLANG_PATH=<path> ...
 #
 
 # LLVM_SRC_PATH is the path to the root of the checked out source code. This
 # directory should contain the configure script, the include/ and lib/
@@ skipping 102 matching lines @@
         PNaClTranslator.cpp
 
 ifndef MINIMAL
   SRCS += IceConverter.cpp \
         IceTypeConverter.cpp
 endif
 
 OBJS=$(patsubst %.cpp, $(OBJDIR)/%.o, $(SRCS))
 
 UNITTEST_SRCS = \
-        IceELFSectionTest.cpp
+        BitcodeMunge.cpp \
+        IceELFSectionTest.cpp \
+        IceParseInstsTest.cpp
 
 UNITTEST_OBJS = $(patsubst %.cpp, $(OBJDIR)/unittest/%.o, $(UNITTEST_SRCS))
 UNITTEST_LIB_OBJS = $(filter-out $(OBJDIR)/llvm2ice.o,$(OBJS))
 
 # Keep all the first target so it's the default.
 all: $(OBJDIR)/llvm2ice make_symlink
 
 # Creates symbolic link so that testing is easier. Also runs
 # llvm2ice to verify that the defines flags have valid values,
 # as well as describe the corresponding build attributes.
@@ skipping 68 matching lines @@
 endif
 format-diff:
         git diff -U0 `git merge-base HEAD master` | \
         $(CLANG_FORMAT_DIFF) -p1 -style=LLVM -i
 
 clean:
         rm -rf llvm2ice *.o $(OBJDIR)
 
 clean-all: clean
         rm -rf build/