Add partial unit tests for dwarf2reader::CompilationUnit.

This is really incomplete --- it's just what's needed to get started
testing support for the DWARF 4 attribute forms.


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@910 4c0a9323-5329-0410-9bdc-e9ce6186880e
diff --git a/Makefile.am b/Makefile.am
index 934b72d..080d63d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -398,6 +398,7 @@
 	src/common/dwarf/dwarf2diehandler_unittest.cc \
 	src/common/dwarf/dwarf2reader.cc \
 	src/common/dwarf/dwarf2reader_cfi_unittest.cc \
+	src/common/dwarf/dwarf2reader_die_unittest.cc \
 	src/common/linux/dump_symbols.cc \
 	src/common/linux/dump_symbols_unittest.cc \
 	src/common/linux/elf_core_dump.cc \