vm: add OP_MATCHERR instruction for pattern matching errors

Replace 4-instruction sequence (GETCONST + STRING + SEND + RAISEIF)
with single OP_MATCHERR instruction that raises NoMatchingPatternError
with "pattern not matched" message.

Bump RITE binary format version from 0300 to 0400 due to opcode
number shift.

Co-authored-by: Claude <noreply@anthropic.com>

src/codedump.c

@@ -572,6 +572,9 @@ codedump(mrb_state *mrb, const mrb_irep *irep, FILE *out)
       fprintf(out, "RAISEIF\tR%d\t", a);
       print_lv_a(mrb, irep, a, out);
       break;
+    CASE(OP_MATCHERR, Z):
+      fprintf(out, "MATCHERR\n");
+      break;
 
     CASE(OP_DEBUG, BBB):
       fprintf(out, "DEBUG\t\t%d\t%d\t%d\n", a, b, c);

src/vm.c

@@ -2167,6 +2167,10 @@ RETRY_TRY_BLOCK:
       NEXT;
     }
 
+    CASE(OP_MATCHERR, Z) {
+      RAISE_LIT(mrb, mrb_exc_get_id(mrb, MRB_ERROR_SYM(NoMatchingPatternError)), "pattern not matched");
+    }
+
     CASE(OP_SSEND, BBB) {
       regs[a] = regs[0];
     }