Fix incorrect assert on ARM that assumed that coprocessor id was always zero....

src/arm/assembler-arm.cc

Index: src/arm/assembler-arm.cc
===================================================================
--- src/arm/assembler-arm.cc	(revision 1918)
+++ src/arm/assembler-arm.cc	(working copy)
@@ -211,6 +211,7 @@
   // Instruction bit masks
   RdMask     = 15 << 12,  // in str instruction
   CondMask   = 15 << 28,
+  CoprocessorMask = 15 << 8,
   OpCodeMask = 15 << 21,  // in data-processing instructions
   Imm24Mask  = (1 << 24) - 1,
   Off12Mask  = (1 << 12) - 1,
@@ -616,7 +617,8 @@
 
 void Assembler::addrmod5(Instr instr, CRegister crd, const MemOperand& x) {
   // unindexed addressing is not encoded by this function
-  ASSERT((instr & ~(CondMask | P | U | N | W | L)) == (B27 | B26));
+  ASSERT_EQ((B27 | B26),
+            (instr & ~(CondMask | CoprocessorMask | P | U | N | W | L)));
   ASSERT(x.rn_.is_valid() && !x.rm_.is_valid());
   int am = x.am_;
   int offset_8 = x.offset_;