Renames the assembler* files.

Renames the assembler* files to IceAssembler*. Fixes whatever breaks.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=4077
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/1179563004.
diff --git a/src/IceCfgNode.cpp b/src/IceCfgNode.cpp
index 68578b9..dec40e4 100644
--- a/src/IceCfgNode.cpp
+++ b/src/IceCfgNode.cpp
@@ -12,7 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "assembler.h"
+#include "IceAssembler.h"
 #include "IceCfg.h"
 #include "IceCfgNode.h"
 #include "IceGlobalInits.h"
@@ -1062,7 +1062,7 @@
   // TODO(stichnot): When sandboxing, defer binding the node label
   // until just before the first instruction is emitted, to reduce the
   // chance that a padding nop is a branch target.
-  Asm->BindCfgNodeLabel(getIndex());
+  Asm->bindCfgNodeLabel(getIndex());
   for (const Inst &I : Phis) {
     if (I.isDeleted())
       continue;