[lldb] Fix comments referring to BCR_M_IMVA_MATCH

[saagarjha]

Summary

It seems like these were copied from the single-step code and not updated to match the new flags.

[JDevlieghere]

Right: BCR_M_IMVA_MISMATCH would be mismatch. LGTM.

lldb/source/Plugins/Process/Utility/RegisterContextDarwin_arm.cpp

if (i < num_hw_breakpoints) {
       // Make sure bits 1:0 are clear in our address
       dbg.bvr[i] = addr & ~((lldb::addr_t)3);
 
       if (size == 2 || addr & 2) {
         uint32_t byte_addr_select = (addr & 2) ? BAS_IMVA_2_3 : BAS_IMVA_0_1;
 
         // We have a thumb breakpoint
         // We have an ARM breakpoint
-        dbg.bcr[i] = BCR_M_IMVA_MATCH | // Stop on address mismatch
+        dbg.bcr[i] = BCR_M_IMVA_MATCH | // Stop on address match
                      byte_addr_select | // Set the correct byte address select
                                         // so we only trigger on the correct
                                         // opcode
                      S_USER |    // Which modes should this breakpoint stop in?
                      BCR_ENABLE; // Enable this hardware breakpoint
                                  //                if (log) log->Printf
         //                ("RegisterContextDarwin_arm::EnableHardwareBreakpoint(
         //                addr = %8.8p, size = %u ) - BVR%u/BCR%u = 0x%8.8x /
         //                0x%8.8x (Thumb)",
         //                        addr,
         //                        size,
         //                        i,
         //                        i,
         //                        dbg.bvr[i],
         //                        dbg.bcr[i]);
       } else if (size == 4) {
         // We have an ARM breakpoint
         dbg.bcr[i] =
-            BCR_M_IMVA_MATCH | // Stop on address mismatch
+            BCR_M_IMVA_MATCH | // Stop on address match
             BAS_IMVA_ALL | // Stop on any of the four bytes following the IMVA
             S_USER |       // Which modes should this breakpoint stop in?
             BCR_ENABLE;    // Enable this hardware breakpoint
                            //                if (log) log->Printf
         //                ("RegisterContextDarwin_arm::EnableHardwareBreakpoint(
         //                addr = %8.8p, size = %u ) - BVR%u/BCR%u = 0x%8.8x /
         //                0x%8.8x (ARM)",
         //                        addr,

lldb/tools/debugserver/source/MacOSX/arm/DNBArchImpl.cpp

if (i < num_hw_breakpoints) {
       m_state.dbg.__bvr[i] = addr & ~((nub_addr_t)3);
 
       if (size == 2 || addr & 2) {
         uint32_t byte_addr_select = (addr & 2) ? BAS_IMVA_2_3 : BAS_IMVA_0_1;
 
         // We have a thumb breakpoint
         // We have an ARM breakpoint
         m_state.dbg.__bcr[i] =
-            BCR_M_IMVA_MATCH | // Stop on address mismatch
+            BCR_M_IMVA_MATCH | // Stop on address match
             byte_addr_select | // Set the correct byte address select so we only
                                // trigger on the correct opcode
             S_USER |           // Which modes should this breakpoint stop in?
             BCR_ENABLE;        // Enable this hardware breakpoint
         DNBLogThreadedIf(LOG_BREAKPOINTS,
                          "DNBArchMachARM::EnableHardwareBreakpoint( addr = "
                          "0x%8.8llx, size = %llu ) - BVR%u/BCR%u = 0x%8.8x / "
                          "0x%8.8x (Thumb)",
                          (uint64_t)addr, (uint64_t)size, i, i,
                          m_state.dbg.__bvr[i], m_state.dbg.__bcr[i]);
       } else if (size == 4) {
         // We have an ARM breakpoint
         m_state.dbg.__bcr[i] =
-            BCR_M_IMVA_MATCH | // Stop on address mismatch
+            BCR_M_IMVA_MATCH | // Stop on address match
             BAS_IMVA_ALL | // Stop on any of the four bytes following the IMVA
             S_USER |       // Which modes should this breakpoint stop in?
             BCR_ENABLE;    // Enable this hardware breakpoint
         DNBLogThreadedIf(LOG_BREAKPOINTS,
                          "DNBArchMachARM::EnableHardwareBreakpoint( addr = "
                          "0x%8.8llx, size = %llu ) - BVR%u/BCR%u = 0x%8.8x / "
                          "0x%8.8x (ARM)",
                          (uint64_t)addr, (uint64_t)size, i, i,