[turbofan] Remove architecture-specific linkage files and LinkageTraits. Use macro-assembler-define…

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 15dbaed69d650b4d3a079df68e8f0999d51a8dc7..92aade9e2659e5beeb29ff6f753757af65486252 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -13,6 +13,17 @@
 namespace v8 {
 namespace internal {
 
+// Give alias names to registers for calling conventions.
+const Register kReturnRegister0 = {kRegister_eax_Code};
+const Register kReturnRegister1 = {kRegister_edx_Code};
+const Register kJSFunctionRegister = {kRegister_edi_Code};
+const Register kContextRegister = {kRegister_esi_Code};
+const Register kInterpreterBytecodeOffsetRegister = {kRegister_ecx_Code};
+const Register kInterpreterBytecodeArrayRegister = {kRegister_edi_Code};
+const Register kInterpreterDispatchTableRegister = {kRegister_ebx_Code};
+const Register kRuntimeCallFunctionRegister = {kRegister_ebx_Code};
+const Register kRuntimeCallArgCountRegister = {kRegister_eax_Code};
+
 // Convenience for platform-independent signatures.  We do not normally
 // distinguish memory operands from other operands on ia32.
 typedef Operand MemOperand;