X87: [debugger] simplify reloc info for debug break slots.

  port 531dde9f (r32516)

  original commit message:
  The new step-in implementation no longer tries to predict the step-in
  target, so we don't need the arguments count nor call type anymore.

BUG=

Review URL: https://codereview.chromium.org/1493993002

Cr-Commit-Position: refs/heads/master@{#32540}

src/debug/x87/debug-x87.cc

@@ -23,10 +23,9 @@ void EmitDebugBreakSlot(MacroAssembler* masm) {
 }
 
 
-void DebugCodegen::GenerateSlot(MacroAssembler* masm, RelocInfo::Mode mode,
-                                int call_argc) {
+void DebugCodegen::GenerateSlot(MacroAssembler* masm, RelocInfo::Mode mode) {
   // Generate enough nop's to make space for a call instruction.
-  masm->RecordDebugBreakSlot(mode, call_argc);
+  masm->RecordDebugBreakSlot(mode);
   EmitDebugBreakSlot(masm);
 }
 

src/full-codegen/x87/full-codegen-x87.cc

@@ -2891,7 +2891,7 @@ void FullCodeGenerator::VisitCallNew(CallNew* expr) {
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetConstructCallPosition(expr, arg_count);
+  SetConstructCallPosition(expr);
 
   // Load function and argument count into edi and eax.
   __ Move(eax, Immediate(arg_count));
@@ -2927,7 +2927,7 @@ void FullCodeGenerator::EmitSuperConstructorCall(Call* expr) {
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetConstructCallPosition(expr, arg_count);
+  SetConstructCallPosition(expr);
 
   // Load new target into edx.
   VisitForAccumulatorValue(super_call_ref->new_target_var());
@@ -3634,7 +3634,7 @@ void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) {
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetConstructCallPosition(expr, 0);
+  SetConstructCallPosition(expr);
 
   // Check if the calling frame is an arguments adaptor frame.
   Label adaptor_frame, args_set_up, runtime;

src/x87/assembler-x87.h

@@ -927,7 +927,7 @@ class Assembler : public AssemblerBase {
   void RecordGeneratorContinuation();
 
   // Mark address of a debug break slot.
-  void RecordDebugBreakSlot(RelocInfo::Mode mode, int argc = 0);
+  void RecordDebugBreakSlot(RelocInfo::Mode mode);
 
   // Record a comment relocation entry that can be used by a disassembler.
   // Use --code-comments to enable.