[trac5110] regen flex/bison files using flex 2.6.3

src/bin/d2/d2_lexer.cc

@@ -3518,7 +3518,7 @@ D2ParserContext::scanStringBegin(const std::string& str, ParserType parser_type)
     loc_.initialize(&file_);
     yy_flex_debug = trace_scanning_;
     YY_BUFFER_STATE buffer;
-    buffer = yy_scan_bytes(str.c_str(), str.size());
+    buffer = d2_parser__scan_bytes(str.c_str(), str.size());
     if (!buffer) {
         fatal("cannot scan string");
         // fatal() throws an exception so this can't be reached

src/bin/dhcp4/dhcp4_lexer.cc

@@ -4673,7 +4673,7 @@ Parser4Context::scanStringBegin(const std::string& str, ParserType parser_type)
     loc_.initialize(&file_);
     yy_flex_debug = trace_scanning_;
     YY_BUFFER_STATE buffer;
-    buffer = yy_scan_bytes(str.c_str(), str.size());
+    buffer = parser4__scan_bytes(str.c_str(), str.size());
     if (!buffer) {
         fatal("cannot scan string");
         // fatal() throws an exception so this can't be reached

src/bin/dhcp6/dhcp6_lexer.cc

@@ -4753,7 +4753,7 @@ Parser6Context::scanStringBegin(const std::string& str, ParserType parser_type)
     loc_.initialize(&file_);
     yy_flex_debug = trace_scanning_;
     YY_BUFFER_STATE buffer;
-    buffer = yy_scan_bytes(str.c_str(), str.size());
+    buffer = parser6__scan_bytes(str.c_str(), str.size());
     if (!buffer) {
         fatal("cannot scan string");
         // fatal() throws an exception so this can't be reached