[LLDB] Add API to set breakpoint kind.

Summary: Added an API to set breakpoint kind. Can be used by custom JIT.

Test Plan: ninja check-lldb

Rollback Plan:

Reviewers: gclayton, jpporto, #lldb_team

Reviewed By: gclayton

Differential Revision: https://phabricator.intern.facebook.com/D77634920

Tasks: T227178858

Author: Alexander Yermolovich

lldb/include/lldb/API/SBBreakpoint.h

@@ -154,6 +154,15 @@ class LLDB_API SBBreakpoint {
 
   SBStructuredData SerializeToStructuredData();
 
+  /// Set the "kind" description for a breakpoint.  If the breakpoint is hit
+  /// the stop info will show this "kind" description instead of the
+  /// breakpoint number.  Mostly useful for internal breakpoints, where the
+  /// breakpoint number doesn't have meaning to the user.
+  ///
+  /// \param[in] kind
+  ///     New "kind" description.
+  void SetBreakpointKind(const char *kind);
+
 private:
   friend class SBBreakpointList;
   friend class SBBreakpointLocation;

lldb/source/API/SBBreakpoint.cpp

@@ -783,6 +783,17 @@ bool SBBreakpoint::IsHardware() const {
 
 BreakpointSP SBBreakpoint::GetSP() const { return m_opaque_wp.lock(); }
 
+void SBBreakpoint::SetBreakpointKind(const char *kind) {
+  LLDB_INSTRUMENT_VA(this);
+
+  BreakpointSP bkpt_sp = GetSP();
+  if (!bkpt_sp)
+    return;
+  std::lock_guard<std::recursive_mutex> guard(
+      bkpt_sp->GetTarget().GetAPIMutex());
+  bkpt_sp->SetBreakpointKind(kind);
+}
+
 // This is simple collection of breakpoint id's and their target.
 class SBBreakpointListImpl {
 public: