textPosEq()

all.h

@@ -686,6 +686,7 @@ fn u32 stringLineStartByteOffset(String s, u32 line_number);
 fn bool stringInsertBytesAt(String* s, str bytes, u32 at);
 fn bool stringInsertBytesAtMaybeAlloc(Arena* a, String* s, str bytes, u32 at);
 fn u32 stringFindNextCharPosFrom(String s, u32 from, u8 c);
+fn bool textPosEq(TextPos a, TextPos b);
 
 ///// OS-wrapped apis
 void      osInit();

string.c

@@ -505,3 +505,8 @@ fn u32 stringFindNextCharPosFrom(String s, u32 from, u8 c) {
   }
   return s.length;
 }
+
+fn bool textPosEq(TextPos a, TextPos b) {
+  return a.line == b.line && a.column == b.column;
+}
+