Make assembler not include the entire compiler.

src/arm/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 27 matching lines @@
 // Generates user mode instructions for the ARM architecture up to version 5
 
 #ifndef V8_ARM_ASSEMBLER_ARM_H_
 #define V8_ARM_ASSEMBLER_ARM_H_
 
 #include <stdio.h>
 #include <vector>
 
 #include "src/arm/constants-arm.h"
 #include "src/assembler.h"
-#include "src/compiler.h"
 
 namespace v8 {
 namespace internal {
 
 // clang-format off
 #define GENERAL_REGISTERS(V)                              \
   V(r0)  V(r1)  V(r2)  V(r3)  V(r4)  V(r5)  V(r6)  V(r7)  \
   V(r8)  V(r9)  V(r10) V(fp)  V(ip)  V(sp)  V(lr)  V(pc)
 
 #define ALLOCATABLE_GENERAL_REGISTERS(V) \
@@ skipping 1563 matching lines @@
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM_ASSEMBLER_ARM_H_