chore: fix some function names in comment

core/rawdb/accessors_indexes.go

@@ -224,7 +224,7 @@ func ReadReceipt(db ctxcdb.Reader, hash common.Hash, config *params.ChainConfig)
 	return nil, common.Hash{}, 0, 0
 }
 
-// ReadFilterMapRow retrieves a filter map row at the given mapRowIndex
+// ReadFilterMapExtRow retrieves a filter map row at the given mapRowIndex
 // (see filtermaps.mapRowIndex for the storage index encoding).
 // Note that zero length rows are not stored in the database and therefore all
 // non-existent entries are interpreted as empty rows and return no error.

core/vm/gas_table.go

@@ -26,7 +26,7 @@ import (
 	// "github.com/CortexFoundation/CortexTheseus/core/types"
 )
 
-// memoryGasCosts calculates the quadratic gas for memory expansion. It does so
+// memoryGasCost calculates the quadratic gas for memory expansion. It does so
 // only for the memory region that is expanded, not the total memory.
 func memoryGasCost(mem *Memory, newMemSize uint64) (uint64, error) {
 

crypto/bn256/google/bn256.go

@@ -166,7 +166,7 @@ type G2 struct {
 	p *twistPoint
 }
 
-// RandomG1 returns x and g₂ˣ where x is a random, non-zero number read from r.
+// RandomG2 returns x and g₂ˣ where x is a random, non-zero number read from r.
 func RandomG2(r io.Reader) (*big.Int, *G2, error) {
 	var k *big.Int
 	var err error