[sql] Import reference version of SQLite 3.7.6.3.

third_party/sqlite/sqlite-src-3070603/mkopcodec.awk

 #!/usr/bin/awk -f
 #
 # This AWK script scans the opcodes.h file (which is itself generated by
 # another awk script) and uses the information gleaned to create the
 # opcodes.c source file.
 #
 # Opcodes.c contains strings which are the symbolic names for the various
 # opcodes used by the VDBE.  These strings are used when disassembling a
 # VDBE program during tracing or as a result of the EXPLAIN keyword.
 #
@@ skipping 11 matching lines @@
   sub("OP_","",$2)
   i++
   printf "     /* %3d */ \"%s\",\n", $3, $2
 }
 END {
   print "  };"
   print "  return azName[i];"
   print "}"
   print "#endif"
 }