[PATCH] Fix dependency file escaping

[Sean Silva]

================
Comment at: lib/Frontend/DependencyFile.cpp:298
@@ -295,3 +297,3 @@
   for (unsigned i = 0, e = Filename.size(); i != e; ++i) {
-    if (Filename[i] == ' ' || Filename[i] == '#')
+    if (Filename[i] == ' ' || Filename[i] == '#') {
       OS << '\\';
----------------
Why `#` also? We are trying to be gcc-compatible. See https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=libcpp/mkdeps.c;h=78bbf09a0cc8c3ba0fe974b55e1ededf02c66665;hb=HEAD#l47

http://reviews.llvm.org/D9208

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