[turbofan] Add initial support for SOFT deopts.

src/compiler/arm/code-generator-arm.cc

Index: src/compiler/arm/code-generator-arm.cc
diff --git a/src/compiler/arm/code-generator-arm.cc b/src/compiler/arm/code-generator-arm.cc
index 8fc4ac8cffc75125c9847e559a19f01554bc5e59..9bad20fe87fb56adab3738aef13d93486f743e54 100644
--- a/src/compiler/arm/code-generator-arm.cc
+++ b/src/compiler/arm/code-generator-arm.cc
@@ -496,7 +496,9 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     case kArchDeoptimize: {
       int deopt_state_id =
           BuildTranslation(instr, -1, 0, OutputFrameStateCombine::Ignore());
-      AssembleDeoptimizerCall(deopt_state_id, Deoptimizer::EAGER);
+      Deoptimizer::BailoutType bailout_type =
+          Deoptimizer::BailoutType(MiscField::decode(instr->opcode()));
+      AssembleDeoptimizerCall(deopt_state_id, bailout_type);
       break;
     }
     case kArchRet: