Speed up lexer by allocating more space for its tokens initially.

src/Parser/Lexer.cpp

@@ -14,17 +14,23 @@ namespace Porygon::Parser {
 
 
     vector<const Token *> Lexer::Lex() {
-        vector<const Token *> tokens;
+        // This is a very greedy allocation. Look into potentially making this less greedy.
+        vector<const Token *> tokens(this->_scriptSize+1);
+        size_t current = 0;
         while (true) {
             Token *next = this->LexNext(this->Next());
             auto nextKind = next->GetKind();
             if (nextKind != TokenKind::WhiteSpace && nextKind != TokenKind::Comment)
-                tokens.push_back(next);
+            {
+                tokens[current] = next;
+                current++;
+            }
             else
                 delete next;
             if (nextKind == TokenKind::EndOfFile)
                 break;
         }
+        tokens.resize(current);
         return tokens;
     }