refactor(debug): move watchpoint slot state into the session

debug/breakpoint.go

@@ -36,7 +36,7 @@ type Condition struct {
 func (c *Condition) Eval(regs *Regs) bool {
 	actual, ok := regs.RegValue(c.Reg)
 	if !ok {
-		return true // unknown register — don't block
+		return true // unknown register, don't block
 	}
 	var expected uint64
 	switch {
@@ -48,7 +48,7 @@ func (c *Condition) Eval(regs *Regs) bool {
 		}
 		expected = v
 	case c.MemAddr != 0:
-		// Register-memory comparison — requires a Session, not available here.
+		// Register-memory comparison, requires a Session, not available here.
 		// Fall back to treating as constant (the caller should resolve).
 		expected = c.Value
 	default:
@@ -72,8 +72,7 @@ func (c *Condition) Eval(regs *Regs) bool {
 	}
 }
 
-// Breakpoints manages the set of breakpoints for a Session.
-// Breakpoints manages software breakpoints for a debuggee.
+// Breakpoints manages the software breakpoints of one Session.
 type Breakpoints struct {
 	t   tracer
 	bps map[uint64]*Breakpoint
@@ -200,7 +199,7 @@ func (bm *Breakpoints) HandleTrap(regs *Regs) *Breakpoint {
 	}
 	// Check the condition (if any).
 	if bp.Cond != nil && !bp.Cond.Eval(regs) {
-		// Condition not met — restore the byte but do NOT rewind RIP.
+		// Condition not met, restore the byte but do NOT rewind RIP.
 		// The process continues from the next instruction (past the INT3).
 		word, err := bm.t.Peek(trapAddr)
 		if err == nil {