style(clang-tidy): fix modernize-use-emplace checks (#1809)

Signed-off-by: Balakrishna Avulapati <ba@bavulapati.com>

Author: bavulapati

src/core/jsonpointer/position.cc

@@ -14,7 +14,7 @@ auto PointerPositionTracker::operator()(const JSON::ParsePhase phase,
                                         const std::uint64_t column,
                                         const JSON &value) -> void {
   if (phase == JSON::ParsePhase::Pre) {
-    this->stack.push({line, column});
+    this->stack.emplace(line, column);
     if (value.is_string()) {
       this->current.push_back(value.to_string());
     } else if (value.is_integer()) {

src/core/jsonschema/frame.cc

@@ -141,15 +141,15 @@ auto find_every_base(
   for (const auto &subpointer : sourcemeta::core::SubPointerWalker{pointer}) {
     if (bases.contains(subpointer)) {
       for (const auto &base : bases.at(subpointer)) {
-        result.push_back({base, subpointer});
+        result.emplace_back(base, subpointer);
       }
     }
   }
 
   if (result.empty() ||
       // This means the top-level schema is anonymous
       result.back().second != sourcemeta::core::empty_pointer) {
-    result.push_back({"", sourcemeta::core::empty_pointer});
+    result.emplace_back("", sourcemeta::core::empty_pointer);
   }
 
   return result;