This fixes very minor "mistakes". (#1281)

src/fallback/dom_parser_implementation.cpp

@@ -247,11 +247,10 @@ simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_
 simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { 
   const uint8_t *data = (const uint8_t *)buf;
   uint64_t pos = 0;
-  uint64_t next_pos = 0;
   uint32_t code_point = 0;
   while (pos < len) {
     // check of the next 8 bytes are ascii.
-    next_pos = pos + 16;
+    uint64_t next_pos = pos + 16;
     if (next_pos <= len) { // if it is safe to read 8 more bytes, check that they are ascii
       uint64_t v1;
       memcpy(&v1, data + pos, sizeof(uint64_t));

src/from_chars.cpp

@@ -64,7 +64,6 @@ decimal parse_decimal(const char *&p) noexcept {
   decimal answer;
   answer.num_digits = 0;
   answer.decimal_point = 0;
-  answer.negative = false;
   answer.truncated = false;
   answer.negative = (*p == '-');
   if ((*p == '-') || (*p == '+')) {
@@ -81,10 +80,9 @@ decimal parse_decimal(const char *&p) noexcept {
     answer.num_digits++;
     ++p;
   }
-  const char *first_after_period{};
   if (*p == '.') {
     ++p;
-    first_after_period = p;
+    const char *first_after_period = p;
     // if we have not yet encountered a zero, we have to skip it as well
     if (answer.num_digits == 0) {
       // skip zeros