Fix llvm makefile to handle macro INPUT_IS_TEXTUAL_BITCODE.

Makefile

Index: Makefile
diff --git a/Makefile b/Makefile
index be05c1547a64147e32795b0b127c8847763233c5..6f15bd5e5df5e3d4450d1cc15066c08fbbfc0091 100644
--- a/Makefile
+++ b/Makefile
@@ -22,9 +22,11 @@ CXX.Flags += -std=gnu++11
 ifeq ($(PNACL_BROWSER_TRANSLATOR),1)
   CPP.Defines += -DALLOW_DUMP=0 -DALLOW_LLVM_CL=0 -DALLOW_LLVM_IR=0 \
     -DALLOW_LLVM_IR_AS_INPUT=0 -DALLOW_DISABLE_IR_GEN=0 \
-    -DALLOW_MINIMAL_BUILD=1 -DPNACL_BROWSER_TRANSLATOR=1
+    -DALLOW_MINIMAL_BUILD=1 -DPNACL_BROWSER_TRANSLATOR=1 \
+    -DINPUT_IS_TEXTUAL_BITCODE=0
 else
   CPP.Defines += -DALLOW_DUMP=1 -DALLOW_LLVM_CL=1 -DALLOW_LLVM_IR=1 \
     -DALLOW_LLVM_IR_AS_INPUT=1 -DALLOW_DISABLE_IR_GEN=1 \
-    -DALLOW_MINIMAL_BUILD=0 -DPNACL_BROWSER_TRANSLATOR=0
+    -DALLOW_MINIMAL_BUILD=0 -DPNACL_BROWSER_TRANSLATOR=0 \
+    -DINPUT_IS_TEXTUAL_BITCODE=0
 endif