Add ic-compiler to BUILD.gn

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/496303003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUILD.gn

@@ -717,6 +717,8 @@ source_set("v8_base") {
     "src/ic/ic-inl.h",
     "src/ic/ic.cc",
     "src/ic/ic.h",
+    "src/ic/ic-compiler.cc",
+    "src/ic/ic-compiler.h",
     "src/ic/stub-cache.cc",
     "src/ic/stub-cache.h",
     "src/interface.cc",